i386: split off sysemu-only functionality in tcg-cpu
Signed-off-by: Claudio Fontana <cfontana@suse.de> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210322132800.7470-11-cfontana@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
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9ea057dc64
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222f3e6f19
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@ -19,6 +19,7 @@ i386_softmmu_ss.add(files(
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'machine.c',
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'monitor.c',
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))
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i386_user_ss = ss.source_set()
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subdir('kvm')
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subdir('hax')
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@ -29,3 +30,4 @@ subdir('tcg')
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target_arch += {'i386': i386_ss}
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target_softmmu_arch += {'i386': i386_softmmu_ss}
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target_user_arch += {'i386': i386_user_ss}
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@ -12,3 +12,6 @@ i386_ss.add(when: 'CONFIG_TCG', if_true: files(
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'svm_helper.c',
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'tcg-cpu.c',
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'translate.c'), if_false: files('tcg-stub.c'))
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subdir('sysemu')
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subdir('user')
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3
target/i386/tcg/sysemu/meson.build
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3
target/i386/tcg/sysemu/meson.build
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@ -0,0 +1,3 @@
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i386_softmmu_ss.add(when: ['CONFIG_TCG', 'CONFIG_SOFTMMU'], if_true: files(
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'tcg-cpu.c',
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))
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83
target/i386/tcg/sysemu/tcg-cpu.c
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83
target/i386/tcg/sysemu/tcg-cpu.c
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@ -0,0 +1,83 @@
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/*
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* i386 TCG cpu class initialization functions specific to sysemu
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "tcg/helper-tcg.h"
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#include "sysemu/sysemu.h"
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#include "qemu/units.h"
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#include "exec/address-spaces.h"
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#include "tcg/tcg-cpu.h"
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static void tcg_cpu_machine_done(Notifier *n, void *unused)
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{
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X86CPU *cpu = container_of(n, X86CPU, machine_done);
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MemoryRegion *smram =
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(MemoryRegion *) object_resolve_path("/machine/smram", NULL);
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if (smram) {
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cpu->smram = g_new(MemoryRegion, 1);
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memory_region_init_alias(cpu->smram, OBJECT(cpu), "smram",
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smram, 0, 4 * GiB);
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memory_region_set_enabled(cpu->smram, true);
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memory_region_add_subregion_overlap(cpu->cpu_as_root, 0,
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cpu->smram, 1);
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}
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}
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bool tcg_cpu_realizefn(CPUState *cs, Error **errp)
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{
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X86CPU *cpu = X86_CPU(cs);
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/*
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* The realize order is important, since x86_cpu_realize() checks if
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* nothing else has been set by the user (or by accelerators) in
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* cpu->ucode_rev and cpu->phys_bits, and the memory regions
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* initialized here are needed for the vcpu initialization.
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*
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* realize order:
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* tcg_cpu -> host_cpu -> x86_cpu
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*/
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cpu->cpu_as_mem = g_new(MemoryRegion, 1);
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cpu->cpu_as_root = g_new(MemoryRegion, 1);
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/* Outer container... */
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memory_region_init(cpu->cpu_as_root, OBJECT(cpu), "memory", ~0ull);
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memory_region_set_enabled(cpu->cpu_as_root, true);
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/*
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* ... with two regions inside: normal system memory with low
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* priority, and...
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*/
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memory_region_init_alias(cpu->cpu_as_mem, OBJECT(cpu), "memory",
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get_system_memory(), 0, ~0ull);
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memory_region_add_subregion_overlap(cpu->cpu_as_root, 0, cpu->cpu_as_mem, 0);
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memory_region_set_enabled(cpu->cpu_as_mem, true);
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cs->num_ases = 2;
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cpu_address_space_init(cs, 0, "cpu-memory", cs->memory);
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cpu_address_space_init(cs, 1, "cpu-smm", cpu->cpu_as_root);
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/* ... SMRAM with higher priority, linked from /machine/smram. */
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cpu->machine_done.notify = tcg_cpu_machine_done;
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qemu_add_machine_init_done_notifier(&cpu->machine_done);
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return true;
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}
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@ -23,11 +23,7 @@
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#include "qemu/accel.h"
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#include "hw/core/accel-cpu.h"
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#ifndef CONFIG_USER_ONLY
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#include "sysemu/sysemu.h"
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#include "qemu/units.h"
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#include "exec/address-spaces.h"
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#endif
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#include "tcg-cpu.h"
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/* Frob eflags into and out of the CPU temporary format. */
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@ -78,72 +74,6 @@ static void tcg_cpu_class_init(CPUClass *cc)
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cc->tcg_ops = &x86_tcg_ops;
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}
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#ifndef CONFIG_USER_ONLY
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static void x86_cpu_machine_done(Notifier *n, void *unused)
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{
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X86CPU *cpu = container_of(n, X86CPU, machine_done);
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MemoryRegion *smram =
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(MemoryRegion *) object_resolve_path("/machine/smram", NULL);
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if (smram) {
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cpu->smram = g_new(MemoryRegion, 1);
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memory_region_init_alias(cpu->smram, OBJECT(cpu), "smram",
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smram, 0, 4 * GiB);
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memory_region_set_enabled(cpu->smram, true);
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memory_region_add_subregion_overlap(cpu->cpu_as_root, 0,
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cpu->smram, 1);
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}
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}
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static bool tcg_cpu_realizefn(CPUState *cs, Error **errp)
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{
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X86CPU *cpu = X86_CPU(cs);
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/*
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* The realize order is important, since x86_cpu_realize() checks if
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* nothing else has been set by the user (or by accelerators) in
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* cpu->ucode_rev and cpu->phys_bits, and the memory regions
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* initialized here are needed for the vcpu initialization.
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*
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* realize order:
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* tcg_cpu -> host_cpu -> x86_cpu
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*/
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cpu->cpu_as_mem = g_new(MemoryRegion, 1);
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cpu->cpu_as_root = g_new(MemoryRegion, 1);
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/* Outer container... */
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memory_region_init(cpu->cpu_as_root, OBJECT(cpu), "memory", ~0ull);
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memory_region_set_enabled(cpu->cpu_as_root, true);
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/*
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* ... with two regions inside: normal system memory with low
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* priority, and...
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*/
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memory_region_init_alias(cpu->cpu_as_mem, OBJECT(cpu), "memory",
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get_system_memory(), 0, ~0ull);
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memory_region_add_subregion_overlap(cpu->cpu_as_root, 0, cpu->cpu_as_mem, 0);
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memory_region_set_enabled(cpu->cpu_as_mem, true);
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cs->num_ases = 2;
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cpu_address_space_init(cs, 0, "cpu-memory", cs->memory);
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cpu_address_space_init(cs, 1, "cpu-smm", cpu->cpu_as_root);
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/* ... SMRAM with higher priority, linked from /machine/smram. */
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cpu->machine_done.notify = x86_cpu_machine_done;
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qemu_add_machine_init_done_notifier(&cpu->machine_done);
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return true;
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}
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#else /* CONFIG_USER_ONLY */
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static bool tcg_cpu_realizefn(CPUState *cs, Error **errp)
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{
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return true;
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}
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#endif /* !CONFIG_USER_ONLY */
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/*
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* TCG-specific defaults that override all CPU models when using TCG
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*/
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@ -163,7 +93,10 @@ static void tcg_cpu_accel_class_init(ObjectClass *oc, void *data)
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{
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AccelCPUClass *acc = ACCEL_CPU_CLASS(oc);
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#ifndef CONFIG_USER_ONLY
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acc->cpu_realizefn = tcg_cpu_realizefn;
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#endif /* CONFIG_USER_ONLY */
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acc->cpu_class_init = tcg_cpu_class_init;
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acc->cpu_instance_init = tcg_cpu_instance_init;
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}
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24
target/i386/tcg/tcg-cpu.h
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24
target/i386/tcg/tcg-cpu.h
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@ -0,0 +1,24 @@
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/*
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* i386 TCG cpu class initialization functions
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*
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* Copyright (c) 2003 Fabrice Bellard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TCG_CPU_H
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#define TCG_CPU_H
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bool tcg_cpu_realizefn(CPUState *cs, Error **errp);
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#endif /* TCG_CPU_H */
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2
target/i386/tcg/user/meson.build
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2
target/i386/tcg/user/meson.build
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@ -0,0 +1,2 @@
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i386_user_ss.add(when: ['CONFIG_TCG', 'CONFIG_USER_ONLY'], if_true: files(
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))
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