KVM: SEV: Publish supported SEV-SNP policy bits

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Define the set of policy bits that KVM currently knows as not requiring
any implementation support within KVM. Provide this value to userspace
via the KVM_GET_DEVICE_ATTR ioctl.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://patch.msgid.link/c596f7529518f3f826a57970029451d9385949e5.1761593632.git.thomas.lendacky@amd.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

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Tom Lendacky 2025-10-27 14:33:51 -05:00 • committed by Sean Christopherson

parent c9434e64e8

commit 7a61d61396

2 changed files with 12 additions and 2 deletions

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arch/x86/include/uapi/asm/kvm.h

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13

arch/x86/kvm/svm/sev.c

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