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| author | Dongjiu Geng | 2018-10-24 08:50:16 +0200 |
|---|---|---|
| committer | Peter Maydell | 2018-10-24 08:50:16 +0200 |
| commit | 202ccb6bab5fe26bca2c82bff23302f7acfd1940 (patch) | |
| tree | e2cbe6029211d7c06a3d7f01acdd7b58d1eb192c /target/arm/kvm_arm.h | |
| parent | ssi-sd: Make devices picking up backends unavailable with -device (diff) | |
| download | qemu-202ccb6bab5fe26bca2c82bff23302f7acfd1940.tar.gz qemu-202ccb6bab5fe26bca2c82bff23302f7acfd1940.tar.xz qemu-202ccb6bab5fe26bca2c82bff23302f7acfd1940.zip | |
target/arm: Add support for VCPU event states
This patch extends the qemu-kvm state sync logic with support for
KVM_GET/SET_VCPU_EVENTS, giving access to yet missing SError exception.
And also it can support the exception state migration.
The SError exception states include SError pending state and ESR value,
the kvm_put/get_vcpu_events() will be called when set or get system
registers. When do migration, if source machine has SError pending,
QEMU will do this migration regardless whether the target machine supports
to specify guest ESR value, because if target machine does not support that,
it can also inject the SError with zero ESR value.
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1538067351-23931-3-git-send-email-gengdongjiu@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target/arm/kvm_arm.h')
| -rw-r--r-- | target/arm/kvm_arm.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/target/arm/kvm_arm.h b/target/arm/kvm_arm.h index 5948e8b560..21c0129da2 100644 --- a/target/arm/kvm_arm.h +++ b/target/arm/kvm_arm.h @@ -121,6 +121,30 @@ bool write_kvmstate_to_list(ARMCPU *cpu); */ void kvm_arm_reset_vcpu(ARMCPU *cpu); +/** + * kvm_arm_init_serror_injection: + * @cs: CPUState + * + * Check whether KVM can set guest SError syndrome. + */ +void kvm_arm_init_serror_injection(CPUState *cs); + +/** + * kvm_get_vcpu_events: + * @cpu: ARMCPU + * + * Get VCPU related state from kvm. + */ +int kvm_get_vcpu_events(ARMCPU *cpu); + +/** + * kvm_put_vcpu_events: + * @cpu: ARMCPU + * + * Put VCPU related state to kvm. + */ +int kvm_put_vcpu_events(ARMCPU *cpu); + #ifdef CONFIG_KVM /** * kvm_arm_create_scratch_host_vcpu: |