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57 lines
2.0 KiB
57 lines
2.0 KiB
1 month ago
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From 2b4558ec338adde1b9735128bb8d2f81db303a93 Mon Sep 17 00:00:00 2001
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From: Avadhut Naik <avnaik@redhat.com>
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Date: Wed, 23 Oct 2024 12:25:28 -0500
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Subject: [PATCH 01/38] accel/kvm: check for KVM_CAP_READONLY_MEM on VM
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RH-Author: avnaik1 <None>
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RH-MergeRequest: 276: accel/kvm: check for KVM_CAP_READONLY_MEM on VM
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RH-Jira: RHEL-58928
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
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RH-Commit: [1/1] 1d392a9e47e68bb71dc44635c494d161585a885c (avnaik1/avnaik-qemu-kvm-fork)
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JIRA: https://issues.redhat.com/browse/RHEL-58928
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commit 64e0e63ea16aa0122dc0c41a0679da0ae4616208
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Author: Tom Dohrmann <erbse.13@gmx.de>
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Date: Tue Sep 3 06:29:53 2024 +0000
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accel/kvm: check for KVM_CAP_READONLY_MEM on VM
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KVM_CAP_READONLY_MEM used to be a global capability, but with the
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introduction of AMD SEV-SNP confidential VMs, this extension is not
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always available on all VM types [1,2].
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Query the extension on the VM level instead of on the KVM level.
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[1] https://patchwork.kernel.org/project/kvm/patch/20240809190319.1710470-2-seanjc@google.com/
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[2] https://patchwork.kernel.org/project/kvm/patch/20240902144219.3716974-1-erbse.13@gmx.de/
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Cc: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Tom Dohrmann <erbse.13@gmx.de>
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Link: https://lore.kernel.org/r/20240903062953.3926498-1-erbse.13@gmx.de
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Signed-off-by: Avadhut Naik <avnaik@redhat.com>
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---
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accel/kvm/kvm-all.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
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index 75d11a07b2..acc23092e7 100644
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--- a/accel/kvm/kvm-all.c
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+++ b/accel/kvm/kvm-all.c
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@@ -2603,7 +2603,7 @@ static int kvm_init(MachineState *ms)
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}
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kvm_readonly_mem_allowed =
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- (kvm_check_extension(s, KVM_CAP_READONLY_MEM) > 0);
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+ (kvm_vm_check_extension(s, KVM_CAP_READONLY_MEM) > 0);
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kvm_resamplefds_allowed =
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(kvm_check_extension(s, KVM_CAP_IRQFD_RESAMPLE) > 0);
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--
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2.39.3
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