[PATCH kernel 0/3] KVM: SEV: Enable AMD SEV-ES DebugSwap

From: Alexey Kardashevskiy <aik@amd.com>
To: Alexey Kardashevskiy <aik@amd.com>
Cc: <kvm@vger.kernel.org>, <x86@kernel.org>,
	<linux-kernel@vger.kernel.org>,
	Venu Busireddy <venu.busireddy@oracle.com>,
	Tony Luck <tony.luck@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Sean Christopherson <seanjc@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Michael Sterritt <sterritt@google.com>,
	Michael Roth <michael.roth@amd.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Ingo Molnar <mingo@redhat.com>,
	Heiko Carstens <hca@linux.ibm.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	"Dave Hansen" <dave.hansen@linux.intel.com>,
	Borislav Petkov <bp@alien8.de>,
	"Andrew Cooper" <andrew.cooper3@citrix.com>,
	"Jason A. Donenfeld" <Jason@zx2c4.com>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: [PATCH kernel 0/3] KVM: SEV: Enable AMD SEV-ES DebugSwap
Date: Thu, 1 Dec 2022 13:19:45 +1100	[thread overview]
Message-ID: <20221201021948.9259-1-aik@amd.com> (raw)

This is to use another AMD SEV-ES hardware assisted register swap,
more detail in 2/3. The patches are fairly independend but required in
this order.

This is based on sha1 ef4d3ea40565 and requires something like this:
https://lkml.org/lkml/2022/11/29/1229

This patchset is pushed out at
https://github.com/aik/linux/commits/debugswap

Please comment. Thanks.

Alexey Kardashevskiy (3):
  x86/amd/dr_addr_mask: Cache values in percpu variables
  KVM: SEV: Enable DebugSwap
  x86/sev: Do not handle #VC for DR7 read/write

 arch/x86/include/asm/debugreg.h |  1 +
 arch/x86/include/asm/svm.h      |  1 +
 arch/x86/kvm/svm/svm.h          | 18 ++++++++---
 arch/x86/kernel/cpu/amd.c       | 32 ++++++++++++++++++++
 arch/x86/kernel/sev.c           |  6 ++++
 arch/x86/kvm/svm/sev.c          | 22 +++++++++++++-
 arch/x86/kvm/svm/svm.c          |  6 ++--
 7 files changed, 78 insertions(+), 8 deletions(-)

-- 
2.38.1