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| author | Maxim Levitsky <mlevitsk@redhat.com> | 2021-04-01 16:54:45 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-04-17 08:31:02 -0400 |
| commit | 7e582ccbbd737181a5f9a7e3b8f7523a62550796 (patch) | |
| tree | 54d07a74858dc9cc58c305c3acce387f2eb1aded | |
| parent | 8b13c36493d8cb56fc3b386507873c5412b7108d (diff) | |
KVM: x86: implement KVM_CAP_SET_GUEST_DEBUG2
Store the supported bits into KVM_GUESTDBG_VALID_MASK
macro, similar to how arm does this.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20210401135451.1004564-4-mlevitsk@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 9 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
2 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 99778ac51243..0d217c3db3f8 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -221,6 +221,15 @@ enum x86_intercept_stage; #define DR7_FIXED_1 0x00000400 #define DR7_VOLATILE 0xffff2bff +#define KVM_GUESTDBG_VALID_MASK \ + (KVM_GUESTDBG_ENABLE | \ + KVM_GUESTDBG_SINGLESTEP | \ + KVM_GUESTDBG_USE_HW_BP | \ + KVM_GUESTDBG_USE_SW_BP | \ + KVM_GUESTDBG_INJECT_BP | \ + KVM_GUESTDBG_INJECT_DB) + + #define PFERR_PRESENT_BIT 0 #define PFERR_WRITE_BIT 1 #define PFERR_USER_BIT 2 diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 79a5d5e26903..91c98e71c0e4 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -3804,6 +3804,8 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_ENFORCE_PV_FEATURE_CPUID: r = 1; break; + case KVM_CAP_SET_GUEST_DEBUG2: + return KVM_GUESTDBG_VALID_MASK; #ifdef CONFIG_KVM_XEN case KVM_CAP_XEN_HVM: r = KVM_XEN_HVM_CONFIG_HYPERCALL_MSR | |