2012-11-12 17:46:57 +01:00
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/*
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* QEMU sPAPR NVRAM emulation
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*
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* Copyright (C) 2012 David Gibson, IBM Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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2012-12-20 07:50:41 +01:00
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2016-01-26 19:16:58 +01:00
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#include "qemu/osdep.h"
|
2019-05-23 16:35:07 +02:00
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|
#include "qemu/module.h"
|
2018-06-25 14:42:24 +02:00
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|
|
#include "qemu/units.h"
|
include/qemu/osdep.h: Don't include qapi/error.h
Commit 57cb38b included qapi/error.h into qemu/osdep.h to get the
Error typedef. Since then, we've moved to include qemu/osdep.h
everywhere. Its file comment explains: "To avoid getting into
possible circular include dependencies, this file should not include
any other QEMU headers, with the exceptions of config-host.h,
compiler.h, os-posix.h and os-win32.h, all of which are doing a
similar job to this file and are under similar constraints."
qapi/error.h doesn't do a similar job, and it doesn't adhere to
similar constraints: it includes qapi-types.h. That's in excess of
100KiB of crap most .c files don't actually need.
Add the typedef to qemu/typedefs.h, and include that instead of
qapi/error.h. Include qapi/error.h in .c files that need it and don't
get it now. Include qapi-types.h in qom/object.h for uint16List.
Update scripts/clean-includes accordingly. Update it further to match
reality: replace config.h by config-target.h, add sysemu/os-posix.h,
sysemu/os-win32.h. Update the list of includes in the qemu/osdep.h
comment quoted above similarly.
This reduces the number of objects depending on qapi/error.h from "all
of them" to less than a third. Unfortunately, the number depending on
qapi-types.h shrinks only a little. More work is needed for that one.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
[Fix compilation without the spice devel packages. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-14 09:01:28 +01:00
|
|
|
#include "qapi/error.h"
|
2016-01-19 21:51:44 +01:00
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#include "cpu.h"
|
2012-11-12 17:46:57 +01:00
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#include <libfdt.h>
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|
|
|
2014-10-07 13:59:18 +02:00
|
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|
#include "sysemu/block-backend.h"
|
2012-12-17 18:20:04 +01:00
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#include "sysemu/device_tree.h"
|
2019-08-12 07:23:59 +02:00
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#include "sysemu/sysemu.h"
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|
#include "sysemu/runstate.h"
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2012-11-12 17:46:57 +01:00
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#include "hw/sysbus.h"
|
2019-08-12 07:23:45 +02:00
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|
#include "migration/vmstate.h"
|
2016-10-26 09:35:40 +02:00
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#include "hw/nvram/chrp_nvram.h"
|
2013-02-05 17:06:20 +01:00
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#include "hw/ppc/spapr.h"
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#include "hw/ppc/spapr_vio.h"
|
2019-08-12 07:23:51 +02:00
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#include "hw/qdev-properties.h"
|
2020-09-03 22:43:22 +02:00
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#include "qom/object.h"
|
2012-11-12 17:46:57 +01:00
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|
2020-09-03 22:43:22 +02:00
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struct SpaprNvram {
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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|
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SpaprVioDevice sdev;
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2012-11-12 17:46:57 +01:00
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uint32_t size;
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uint8_t *buf;
|
2014-10-07 13:59:18 +02:00
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BlockBackend *blk;
|
2016-07-21 14:05:46 +02:00
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VMChangeStateEntry *vmstate;
|
2020-09-03 22:43:22 +02:00
|
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};
|
2012-11-12 17:46:57 +01:00
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2013-04-07 21:08:16 +02:00
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#define TYPE_VIO_SPAPR_NVRAM "spapr-nvram"
|
2020-09-16 20:25:19 +02:00
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OBJECT_DECLARE_SIMPLE_TYPE(SpaprNvram, VIO_SPAPR_NVRAM)
|
2013-04-07 21:08:16 +02:00
|
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|
2018-06-25 14:42:24 +02:00
|
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|
#define MIN_NVRAM_SIZE (8 * KiB)
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|
#define DEFAULT_NVRAM_SIZE (64 * KiB)
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#define MAX_NVRAM_SIZE (1 * MiB)
|
2012-11-12 17:46:57 +01:00
|
|
|
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
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static void rtas_nvram_fetch(PowerPCCPU *cpu, SpaprMachineState *spapr,
|
2012-11-12 17:46:57 +01:00
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uint32_t token, uint32_t nargs,
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target_ulong args,
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uint32_t nret, target_ulong rets)
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|
|
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{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
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SpaprNvram *nvram = spapr->nvram;
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2012-11-12 17:46:57 +01:00
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hwaddr offset, buffer, len;
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void *membuf;
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if ((nargs != 3) || (nret != 2)) {
|
2013-11-19 05:28:54 +01:00
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rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
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2012-11-12 17:46:57 +01:00
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return;
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|
}
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|
|
if (!nvram) {
|
2013-11-19 05:28:54 +01:00
|
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rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
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2012-11-12 17:46:57 +01:00
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rtas_st(rets, 1, 0);
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|
return;
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|
}
|
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offset = rtas_ld(args, 0);
|
|
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buffer = rtas_ld(args, 1);
|
|
|
|
len = rtas_ld(args, 2);
|
|
|
|
|
|
|
|
if (((offset + len) < offset)
|
|
|
|
|| ((offset + len) > nvram->size)) {
|
2013-11-19 05:28:54 +01:00
|
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
2012-11-12 17:46:57 +01:00
|
|
|
rtas_st(rets, 1, 0);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2014-10-02 11:56:03 +02:00
|
|
|
assert(nvram->buf);
|
2012-11-12 17:46:57 +01:00
|
|
|
|
2020-02-19 20:20:42 +01:00
|
|
|
membuf = cpu_physical_memory_map(buffer, &len, true);
|
2014-10-02 11:56:03 +02:00
|
|
|
memcpy(membuf, nvram->buf + offset, len);
|
2012-11-12 17:46:57 +01:00
|
|
|
cpu_physical_memory_unmap(membuf, len, 1, len);
|
|
|
|
|
2014-10-02 11:56:03 +02:00
|
|
|
rtas_st(rets, 0, RTAS_OUT_SUCCESS);
|
|
|
|
rtas_st(rets, 1, len);
|
2012-11-12 17:46:57 +01:00
|
|
|
}
|
|
|
|
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
static void rtas_nvram_store(PowerPCCPU *cpu, SpaprMachineState *spapr,
|
2012-11-12 17:46:57 +01:00
|
|
|
uint32_t token, uint32_t nargs,
|
|
|
|
target_ulong args,
|
|
|
|
uint32_t nret, target_ulong rets)
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprNvram *nvram = spapr->nvram;
|
2012-11-12 17:46:57 +01:00
|
|
|
hwaddr offset, buffer, len;
|
|
|
|
int alen;
|
|
|
|
void *membuf;
|
|
|
|
|
|
|
|
if ((nargs != 3) || (nret != 2)) {
|
2013-11-19 05:28:54 +01:00
|
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
2012-11-12 17:46:57 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!nvram) {
|
2013-11-19 05:28:54 +01:00
|
|
|
rtas_st(rets, 0, RTAS_OUT_HW_ERROR);
|
2012-11-12 17:46:57 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
offset = rtas_ld(args, 0);
|
|
|
|
buffer = rtas_ld(args, 1);
|
|
|
|
len = rtas_ld(args, 2);
|
|
|
|
|
|
|
|
if (((offset + len) < offset)
|
|
|
|
|| ((offset + len) > nvram->size)) {
|
2013-11-19 05:28:54 +01:00
|
|
|
rtas_st(rets, 0, RTAS_OUT_PARAM_ERROR);
|
2012-11-12 17:46:57 +01:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2020-02-19 20:20:42 +01:00
|
|
|
membuf = cpu_physical_memory_map(buffer, &len, false);
|
2014-10-02 11:56:03 +02:00
|
|
|
|
|
|
|
alen = len;
|
2014-10-07 13:59:18 +02:00
|
|
|
if (nvram->blk) {
|
2016-05-06 18:26:27 +02:00
|
|
|
alen = blk_pwrite(nvram->blk, offset, membuf, len, 0);
|
2012-11-12 17:46:57 +01:00
|
|
|
}
|
2014-10-02 11:56:03 +02:00
|
|
|
|
|
|
|
assert(nvram->buf);
|
|
|
|
memcpy(nvram->buf + offset, membuf, len);
|
|
|
|
|
2012-11-12 17:46:57 +01:00
|
|
|
cpu_physical_memory_unmap(membuf, len, 0, len);
|
|
|
|
|
2013-11-19 05:28:54 +01:00
|
|
|
rtas_st(rets, 0, (alen < len) ? RTAS_OUT_HW_ERROR : RTAS_OUT_SUCCESS);
|
2012-11-12 17:46:57 +01:00
|
|
|
rtas_st(rets, 1, (alen < 0) ? 0 : alen);
|
|
|
|
}
|
|
|
|
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
static void spapr_nvram_realize(SpaprVioDevice *dev, Error **errp)
|
2012-11-12 17:46:57 +01:00
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprNvram *nvram = VIO_SPAPR_NVRAM(dev);
|
2017-01-24 13:43:31 +01:00
|
|
|
int ret;
|
2012-11-12 17:46:57 +01:00
|
|
|
|
2014-10-07 13:59:18 +02:00
|
|
|
if (nvram->blk) {
|
2017-06-05 17:14:17 +02:00
|
|
|
int64_t len = blk_getlength(nvram->blk);
|
|
|
|
|
|
|
|
if (len < 0) {
|
|
|
|
error_setg_errno(errp, -len,
|
|
|
|
"could not get length of backing image");
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
nvram->size = len;
|
2017-01-24 13:43:31 +01:00
|
|
|
|
|
|
|
ret = blk_set_perm(nvram->blk,
|
|
|
|
BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE,
|
|
|
|
BLK_PERM_ALL, errp);
|
|
|
|
if (ret < 0) {
|
|
|
|
return;
|
|
|
|
}
|
2012-11-12 17:46:57 +01:00
|
|
|
} else {
|
|
|
|
nvram->size = DEFAULT_NVRAM_SIZE;
|
|
|
|
}
|
|
|
|
|
2014-10-02 11:56:03 +02:00
|
|
|
nvram->buf = g_malloc0(nvram->size);
|
|
|
|
|
2012-11-12 17:46:57 +01:00
|
|
|
if ((nvram->size < MIN_NVRAM_SIZE) || (nvram->size > MAX_NVRAM_SIZE)) {
|
2018-06-25 14:42:24 +02:00
|
|
|
error_setg(errp,
|
|
|
|
"spapr-nvram must be between %" PRId64
|
|
|
|
" and %" PRId64 " bytes in size",
|
2015-02-27 11:52:17 +01:00
|
|
|
MIN_NVRAM_SIZE, MAX_NVRAM_SIZE);
|
|
|
|
return;
|
2012-11-12 17:46:57 +01:00
|
|
|
}
|
|
|
|
|
2014-10-02 11:56:03 +02:00
|
|
|
if (nvram->blk) {
|
|
|
|
int alen = blk_pread(nvram->blk, 0, nvram->buf, nvram->size);
|
|
|
|
|
|
|
|
if (alen != nvram->size) {
|
2015-02-27 11:52:17 +01:00
|
|
|
error_setg(errp, "can't read spapr-nvram contents");
|
|
|
|
return;
|
2014-10-02 11:56:03 +02:00
|
|
|
}
|
2016-10-26 09:35:40 +02:00
|
|
|
} else if (nb_prom_envs > 0) {
|
|
|
|
/* Create a system partition to pass the -prom-env variables */
|
nvram: Exit QEMU if NVRAM cannot contain all -prom-env data
Since commit 61f20b9dc5b7 ("spapr_nvram: Pre-initialize the NVRAM to
support the -prom-env parameter"), pseries machines can pre-initialize
the "system" partition in the NVRAM with the data passed to all -prom-env
parameters on the QEMU command line.
In this case it is assumed that all the data fits in 64 KiB, but the user
can easily pass more and crash QEMU:
$ qemu-system-ppc64 -M pseries $(for ((x=0;x<128;x++)); do \
echo -n " -prom-env " ; printf "%0.sx" {1..1024}; \
done) # this requires ~128 Kib
malloc(): corrupted top size
Aborted (core dumped)
This happens because we don't check if all the prom-env data fits in
the NVRAM and chrp_nvram_set_var() happily memcpy() it passed the
buffer.
This crash affects basically all ppc/ppc64 machine types that use -prom-env:
- pseries (all versions)
- g3beige
- mac99
and also sparc/sparc64 machine types:
- LX
- SPARCClassic
- SPARCbook
- SS-10
- SS-20
- SS-4
- SS-5
- SS-600MP
- Voyager
- sun4u
- sun4v
Add a max_len argument to chrp_nvram_create_system_partition() so that
it can check the available size before writing to memory.
Since NVRAM is populated at machine init, it seems reasonable to consider
this error as fatal. So, instead of reporting an error when we detect that
the NVRAM is too small and adapt all machine types to handle it, we simply
exit QEMU in all cases. This is still better than crashing. If someone
wants another behavior, I guess this can be reworked later.
Tested with:
$ yes q | \
(for arch in ppc ppc64 sparc sparc64; do \
echo == $arch ==; \
qemu=${arch}-softmmu/qemu-system-$arch; \
for mach in $($qemu -M help | awk '! /^Supported/ { print $1 }'); do \
echo $mach; \
$qemu -M $mach -monitor stdio -nodefaults -nographic \
$(for ((x=0;x<128;x++)); do \
echo -n " -prom-env " ; printf "%0.sx" {1..1024}; \
done) >/dev/null; \
done; echo; \
done)
Without the patch, affected machine types cause QEMU to report some
memory corruption and crash:
malloc(): corrupted top size
free(): invalid size
*** stack smashing detected ***: terminated
With the patch, QEMU prints the following message and exits:
NVRAM is too small. Try to pass less data to -prom-env
It seems that the conditions for the crash have always existed, but it
affects pseries, the machine type I care for, since commit 61f20b9dc5b7
only.
Fixes: 61f20b9dc5b7 ("spapr_nvram: Pre-initialize the NVRAM to support the -prom-env parameter")
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1867739
Reported-by: John Snow <jsnow@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159736033937.350502.12402444542194031035.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-14 01:12:19 +02:00
|
|
|
chrp_nvram_create_system_partition(nvram->buf, MIN_NVRAM_SIZE / 4,
|
|
|
|
nvram->size);
|
2016-10-26 09:35:40 +02:00
|
|
|
chrp_nvram_create_free_partition(&nvram->buf[MIN_NVRAM_SIZE / 4],
|
|
|
|
nvram->size - MIN_NVRAM_SIZE / 4);
|
2014-10-02 11:56:03 +02:00
|
|
|
}
|
|
|
|
|
2014-06-23 15:26:32 +02:00
|
|
|
spapr_rtas_register(RTAS_NVRAM_FETCH, "nvram-fetch", rtas_nvram_fetch);
|
|
|
|
spapr_rtas_register(RTAS_NVRAM_STORE, "nvram-store", rtas_nvram_store);
|
2012-11-12 17:46:57 +01:00
|
|
|
}
|
|
|
|
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
static int spapr_nvram_devnode(SpaprVioDevice *dev, void *fdt, int node_off)
|
2012-11-12 17:46:57 +01:00
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprNvram *nvram = VIO_SPAPR_NVRAM(dev);
|
2012-11-12 17:46:57 +01:00
|
|
|
|
|
|
|
return fdt_setprop_cell(fdt, node_off, "#bytes", nvram->size);
|
|
|
|
}
|
|
|
|
|
2014-10-02 11:56:03 +02:00
|
|
|
static int spapr_nvram_pre_load(void *opaque)
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprNvram *nvram = VIO_SPAPR_NVRAM(opaque);
|
2014-10-02 11:56:03 +02:00
|
|
|
|
|
|
|
g_free(nvram->buf);
|
|
|
|
nvram->buf = NULL;
|
|
|
|
nvram->size = 0;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2016-07-21 14:05:46 +02:00
|
|
|
static void postload_update_cb(void *opaque, int running, RunState state)
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprNvram *nvram = opaque;
|
2016-07-21 14:05:46 +02:00
|
|
|
|
|
|
|
/* This is called after bdrv_invalidate_cache_all. */
|
|
|
|
|
|
|
|
qemu_del_vm_change_state_handler(nvram->vmstate);
|
|
|
|
nvram->vmstate = NULL;
|
|
|
|
|
|
|
|
blk_pwrite(nvram->blk, 0, nvram->buf, nvram->size, 0);
|
|
|
|
}
|
|
|
|
|
2014-10-02 11:56:03 +02:00
|
|
|
static int spapr_nvram_post_load(void *opaque, int version_id)
|
|
|
|
{
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprNvram *nvram = VIO_SPAPR_NVRAM(opaque);
|
2014-10-02 11:56:03 +02:00
|
|
|
|
|
|
|
if (nvram->blk) {
|
2016-07-21 14:05:46 +02:00
|
|
|
nvram->vmstate = qemu_add_vm_change_state_handler(postload_update_cb,
|
|
|
|
nvram);
|
2014-10-02 11:56:03 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static const VMStateDescription vmstate_spapr_nvram = {
|
|
|
|
.name = "spapr_nvram",
|
|
|
|
.version_id = 1,
|
|
|
|
.minimum_version_id = 1,
|
|
|
|
.pre_load = spapr_nvram_pre_load,
|
|
|
|
.post_load = spapr_nvram_post_load,
|
|
|
|
.fields = (VMStateField[]) {
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
VMSTATE_UINT32(size, SpaprNvram),
|
|
|
|
VMSTATE_VBUFFER_ALLOC_UINT32(buf, SpaprNvram, 1, NULL, size),
|
2014-10-02 11:56:03 +02:00
|
|
|
VMSTATE_END_OF_LIST()
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
2012-11-12 17:46:57 +01:00
|
|
|
static Property spapr_nvram_properties[] = {
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
DEFINE_SPAPR_PROPERTIES(SpaprNvram, sdev),
|
|
|
|
DEFINE_PROP_DRIVE("drive", SpaprNvram, blk),
|
2012-11-12 17:46:57 +01:00
|
|
|
DEFINE_PROP_END_OF_LIST(),
|
|
|
|
};
|
|
|
|
|
|
|
|
static void spapr_nvram_class_init(ObjectClass *klass, void *data)
|
|
|
|
{
|
|
|
|
DeviceClass *dc = DEVICE_CLASS(klass);
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
|
|
|
SpaprVioDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
|
2012-11-12 17:46:57 +01:00
|
|
|
|
2015-02-27 11:52:17 +01:00
|
|
|
k->realize = spapr_nvram_realize;
|
2012-11-12 17:46:57 +01:00
|
|
|
k->devnode = spapr_nvram_devnode;
|
|
|
|
k->dt_name = "nvram";
|
|
|
|
k->dt_type = "nvram";
|
|
|
|
k->dt_compatible = "qemu,spapr-nvram";
|
2013-10-11 05:08:20 +02:00
|
|
|
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
|
2020-01-10 16:30:32 +01:00
|
|
|
device_class_set_props(dc, spapr_nvram_properties);
|
2014-10-02 11:56:03 +02:00
|
|
|
dc->vmsd = &vmstate_spapr_nvram;
|
2017-08-24 09:41:33 +02:00
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/* Reason: Internal device only, uses spapr_rtas_register() in realize() */
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dc->user_creatable = false;
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2012-11-12 17:46:57 +01:00
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}
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static const TypeInfo spapr_nvram_type_info = {
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2013-04-07 21:08:16 +02:00
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.name = TYPE_VIO_SPAPR_NVRAM,
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2012-11-12 17:46:57 +01:00
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.parent = TYPE_VIO_SPAPR_DEVICE,
|
spapr: Use CamelCase properly
The qemu coding standard is to use CamelCase for type and structure names,
and the pseries code follows that... sort of. There are quite a lot of
places where we bend the rules in order to preserve the capitalization of
internal acronyms like "PHB", "TCE", "DIMM" and most commonly "sPAPR".
That was a bad idea - it frequently leads to names ending up with hard to
read clusters of capital letters, and means they don't catch the eye as
type identifiers, which is kind of the point of the CamelCase convention in
the first place.
In short, keeping type identifiers look like CamelCase is more important
than preserving standard capitalization of internal "words". So, this
patch renames a heap of spapr internal type names to a more standard
CamelCase.
In addition to case changes, we also make some other identifier renames:
VIOsPAPR* -> SpaprVio*
The reverse word ordering was only ever used to mitigate the capital
cluster, so revert to the natural ordering.
VIOsPAPRVTYDevice -> SpaprVioVty
VIOsPAPRVLANDevice -> SpaprVioVlan
Brevity, since the "Device" didn't add useful information
sPAPRDRConnector -> SpaprDrc
sPAPRDRConnectorClass -> SpaprDrcClass
Brevity, and makes it clearer this is the same thing as a "DRC"
mentioned in many other places in the code
This is 100% a mechanical search-and-replace patch. It will, however,
conflict with essentially any and all outstanding patches touching the
spapr code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2019-03-06 05:35:37 +01:00
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.instance_size = sizeof(SpaprNvram),
|
2012-11-12 17:46:57 +01:00
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|
|
.class_init = spapr_nvram_class_init,
|
|
|
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};
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static void spapr_nvram_register_types(void)
|
|
|
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{
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|
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type_register_static(&spapr_nvram_type_info);
|
|
|
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}
|
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type_init(spapr_nvram_register_types)
|