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Merge remote-tracking branch 'remotes/sstabellini/xen-2015-01-13' into staging

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* remotes/sstabellini/xen-2015-01-13:
  xen-hvm: increase maxmem before calling xc_domain_populate_physmap
  xen-pt: Fix PCI devices re-attach failed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2015-01-13 18:32:42 +00:00
parent a00369fc56 c1d322e604
commit 3a7f560fa6
2 changed files with 25 additions and 1 deletions
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2
hw/xen/xen_pt.c
View file

@ -736,7 +736,7 @@ static int xen_pt_initfn(PCIDevice *d)
}
out:
memory_listener_register(&s->memory_listener, &address_space_memory);
memory_listener_register(&s->memory_listener, &s->dev.bus_master_as);
memory_listener_register(&s->io_listener, &address_space_io);
XEN_PT_LOG(d,
"Real physical device %02x:%02x.%d registered successfully!\n",

24
xen-hvm.c
View file

@ -90,6 +90,12 @@ static inline ioreq_t *xen_vcpu_ioreq(shared_iopage_t *shared_page, int vcpu)
#endif
#define BUFFER_IO_MAX_DELAY 100
/* Leave some slack so that hvmloader does not complain about lack of
* memory at boot time ("Could not allocate order=0 extent").
* Once hvmloader is modified to cope with that situation without
* printing warning messages, QEMU_SPARE_PAGES can be removed.
*/
#define QEMU_SPARE_PAGES 16
typedef struct XenPhysmap {
hwaddr start_addr;
@ -244,6 +250,8 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
unsigned long nr_pfn;
xen_pfn_t *pfn_list;
int i;
xc_domaininfo_t info;
unsigned long free_pages;
if (runstate_check(RUN_STATE_INMIGRATE)) {
/* RAM already populated in Xen */
@ -266,6 +274,22 @@ void xen_ram_alloc(ram_addr_t ram_addr, ram_addr_t size, MemoryRegion *mr)
pfn_list[i] = (ram_addr >> TARGET_PAGE_BITS) + i;
}
if ((xc_domain_getinfolist(xen_xc, xen_domid, 1, &info) != 1) ||
(info.domain != xen_domid)) {
hw_error("xc_domain_getinfolist failed");
}
free_pages = info.max_pages - info.tot_pages;
if (free_pages > QEMU_SPARE_PAGES) {
free_pages -= QEMU_SPARE_PAGES;
} else {
free_pages = 0;
}
if ((free_pages < nr_pfn) &&
(xc_domain_setmaxmem(xen_xc, xen_domid,
((info.max_pages + nr_pfn - free_pages)
<< (XC_PAGE_SHIFT - 10))) < 0)) {
hw_error("xc_domain_setmaxmem failed");
}
if (xc_domain_populate_physmap_exact(xen_xc, xen_domid, nr_pfn, 0, 0, pfn_list)) {
hw_error("xen: failed to populate ram at " RAM_ADDR_FMT, ram_addr);
}