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authorJames Morse <james.morse@arm.com>2018-07-19 18:24:25 +0300
committerMarc Zyngier <marc.zyngier@arm.com>2018-07-21 18:02:32 +0300
commitb0960b9569db6b2fe8a75967d47b9dcdeb44016b (patch)
tree465340bda85cfe34f1d816e7e746b1e638e41f90 /Documentation/virtual
parent539aee0edb9fdc8f465e3843c261acc88c47d8ee (diff)
downloadlinux-b0960b9569db6b2fe8a75967d47b9dcdeb44016b.tar.xz
KVM: arm: Add 32bit get/set events support
arm64's new use of KVMs get_events/set_events API calls isn't just or RAS, it allows an SError that has been made pending by KVM as part of its device emulation to be migrated. Wire this up for 32bit too. We only need to read/write the HCR_VA bit, and check that no esr has been provided, as we don't yet support VDFSR. Signed-off-by: James Morse <james.morse@arm.com> Reviewed-by: Dongjiu Geng <gengdongjiu@huawei.com> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'Documentation/virtual')
-rw-r--r--Documentation/virtual/kvm/api.txt8
1 files changed, 4 insertions, 4 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index dbbb95d5798a..4d93fd65bbbd 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -835,7 +835,7 @@ struct kvm_clock_data {
Capability: KVM_CAP_VCPU_EVENTS
Extended by: KVM_CAP_INTR_SHADOW
-Architectures: x86, arm64
+Architectures: x86, arm, arm64
Type: vcpu ioctl
Parameters: struct kvm_vcpu_event (out)
Returns: 0 on success, -1 on error
@@ -883,7 +883,7 @@ Only two fields are defined in the flags field:
- KVM_VCPUEVENT_VALID_SMM may be set in the flags field to signal that
smi contains a valid state.
-ARM64:
+ARM/ARM64:
If the guest accesses a device that is being emulated by the host kernel in
such a way that a real device would generate a physical SError, KVM may make
@@ -934,7 +934,7 @@ struct kvm_vcpu_events {
Capability: KVM_CAP_VCPU_EVENTS
Extended by: KVM_CAP_INTR_SHADOW
-Architectures: x86, arm64
+Architectures: x86, arm, arm64
Type: vcpu ioctl
Parameters: struct kvm_vcpu_event (in)
Returns: 0 on success, -1 on error
@@ -961,7 +961,7 @@ shall be written into the VCPU.
KVM_VCPUEVENT_VALID_SMM can only be set if KVM_CAP_X86_SMM is available.
-ARM64:
+ARM/ARM64:
Set the pending SError exception state for this VCPU. It is not possible to
'cancel' an Serror that has been made pending.