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cpus: reorganize signal handling code

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Move the KVM "eat signals" code under CONFIG_LINUX, in preparation
for moving it to kvm-all.c; reraise non-MCE SIGBUS immediately,
without passing it to KVM.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-02-09 09:50:02 +01:00
parent 20e0ff59a9
commit a16fc07ebd
3 changed files with 64 additions and 65 deletions
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15
target/i386/kvm.c
View file

@ -64,13 +64,6 @@
* 255 kvm_msr_entry structs */
#define MSR_BUF_SIZE 4096
#ifndef BUS_MCEERR_AR
#define BUS_MCEERR_AR 4
#endif
#ifndef BUS_MCEERR_AO
#define BUS_MCEERR_AO 5
#endif
const KVMCapabilityInfo kvm_arch_required_capabilities[] = {
KVM_CAP_INFO(SET_TSS_ADDR),
KVM_CAP_INFO(EXT_CPUID),
@ -469,9 +462,7 @@ int kvm_arch_on_sigbus_vcpu(CPUState *c, int code, void *addr)
ram_addr_t ram_addr;
hwaddr paddr;
if (code != BUS_MCEERR_AR && code != BUS_MCEERR_AO) {
return 1;
}
assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
/* Because the MCE happened while running the VCPU, KVM could have
* injected action required MCEs too. Action optional MCEs should
@ -504,9 +495,7 @@ int kvm_arch_on_sigbus(int code, void *addr)
{
X86CPU *cpu = X86_CPU(first_cpu);
if (code != BUS_MCEERR_AR && code != BUS_MCEERR_AO) {
return 1;
}
assert(code == BUS_MCEERR_AR || code == BUS_MCEERR_AO);
if (code == BUS_MCEERR_AR) {
hardware_memory_error();