[SRU][O/N:linux-intel][PATCH 0/3] Can't use graphics=vnc on TDVM

[Thibault Ferrante]

BugLink: https://bugs.launchpad.net/bugs/2101083

[ Impact ]

 * if a TDVM is created with vnc graphics enabled, the VM itself crashes, and the following entries are seen in the logs:

2024-07-11T09:19:19.469114Z qemu-system-x86_64: Failed to get registers: Input/output error 2024-07-11 09:19:19.853+0000: shutting down, reason=crashed

[ Fix ]

 * Backport patch 25-27 from upstream submission:
https://lore.kernel.org/all/20250226195529.2314580-26-pbonzini@redhat.com/

[ Test Plan ]

 * Create a Noble (24.04) Host and Guest setup following https://github.com/canonical/tdx/
 * Create a VM with graphics type as vnc.
 * Power the VM on.
 * Check for the qemu logs to find the aforementioned messages.

[ Where problems could occur ]

 * KVM regression

[ Other Info ]

 * Built and tested by intel on targeted hardware.
 * Original bug report : https://github.com/canonical/tdx/issues/202

Thibault Ferrante (3):
  UBUNTU: SAUCE: KVM: x86/mmu: Add parameter "kvm" to
    kvm_mmu_page_ad_need_write_protect()
  UBUNTU: SAUCE: KVM: x86: Make cpu_dirty_log_size a per-VM value
Yan Zhao (1):
  UBUNTU: SAUCE: KVM: Add parameter "kvm" to kvm_cpu_dirty_log_size()
    and its callers

 arch/x86/include/asm/kvm_host.h | 11 ++++++-----
 arch/x86/kvm/mmu/mmu.c          |  6 +++---
 arch/x86/kvm/mmu/mmu_internal.h |  5 +++--
 arch/x86/kvm/mmu/spte.c         |  2 +-
 arch/x86/kvm/mmu/tdp_mmu.c      | 12 ++++++------
 arch/x86/kvm/vmx/main.c         |  1 -
 arch/x86/kvm/vmx/vmx.c          |  5 ++---
 arch/x86/kvm/x86.c              |  6 +++---
 include/linux/kvm_dirty_ring.h  | 11 ++++++-----
 virt/kvm/dirty_ring.c           | 11 ++++++-----
 virt/kvm/kvm_main.c             |  4 ++--
 11 files changed, 38 insertions(+), 36 deletions(-)

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2.45.2