Message ID | 20240626135232.2731811-1-thibault.ferrante@canonical.com |
---|---|
Headers | show |
Series | Support Kexec/Kdump | expand |
On Wed, Jun 26, 2024 at 9:53 AM Thibault Ferrante < thibault.ferrante@canonical.com> wrote: > BugLink: https://bugs.launchpad.net/bugs/2070356 > > [ Impact ] > > Kexec is currently disabled on linux-intel as it was incompatible with tdx. > These patch make it possible to use it at the same time than TDX > > [ Fix ] > > A backport of the kexec enablement for tdx on 6.8 has been done by intel. > > [ Test Plan ] > > Use kexec to do a kdump on hardware support tdx. > It was tested by Intel and me on dedicated hardware. > > [ Where problems could occur ] > > Regression on TDX/Kexec related features. > > -- Acked-by: Philip Cox <philip.cox@canonical.com> > > Gerd Hoffmann (2): > UBUNTU: SAUCE: KVM: x86: Don't advertise guest.MAXPHYADDR as > host.MAXPHYADDR in CPUID > UBUNTU: SAUCE: KVM: x86: Advertise max mappable GPA in > CPUID.0x80000008.GuestPhysBits > > Kai Huang (5): > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > stop_this_cpu() > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > relocate_kernel() > UBUNTU: SAUCE: x86/kexec: Reset TDX private memory on platforms with > TDX erratum > UBUNTU: SAUCE: x86/virt/tdx: Remove the !KEXEC_CORE dependency > UBUNTU: SAUCE: x86/virt/tdx: Add TDX memory reset notifier to reset > other private pages > > Thibault Ferrante (1): > UBUNTU: [Config] intel: Enable KEXEC/KDUMP related config > > arch/x86/Kconfig | 1 - > arch/x86/include/asm/kexec.h | 2 +- > arch/x86/include/asm/tdx.h | 16 +++++ > arch/x86/kernel/machine_kexec_64.c | 29 ++++++-- > arch/x86/kernel/process.c | 19 +++-- > arch/x86/kernel/relocate_kernel_64.S | 19 +++-- > arch/x86/kvm/cpuid.c | 41 ++++++++--- > arch/x86/kvm/mmu.h | 2 + > arch/x86/kvm/mmu/mmu.c | 5 ++ > arch/x86/virt/vmx/tdx/tdx.c | 100 +++++++++++++++++++++++++++ > debian.intel/config/annotations | 30 -------- > 11 files changed, 203 insertions(+), 61 deletions(-) > > -- > 2.43.0 > > > -- > kernel-team mailing list > kernel-team@lists.ubuntu.com > https://lists.ubuntu.com/mailman/listinfo/kernel-team >
On 6/26/24 8:52 AM, Thibault Ferrante wrote: > BugLink: https://bugs.launchpad.net/bugs/2070356 > > [ Impact ] > > Kexec is currently disabled on linux-intel as it was incompatible with tdx. > These patch make it possible to use it at the same time than TDX > > [ Fix ] > > A backport of the kexec enablement for tdx on 6.8 has been done by intel. > > [ Test Plan ] > > Use kexec to do a kdump on hardware support tdx. > It was tested by Intel and me on dedicated hardware. > > [ Where problems could occur ] > > Regression on TDX/Kexec related features. > > > Gerd Hoffmann (2): > UBUNTU: SAUCE: KVM: x86: Don't advertise guest.MAXPHYADDR as > host.MAXPHYADDR in CPUID > UBUNTU: SAUCE: KVM: x86: Advertise max mappable GPA in > CPUID.0x80000008.GuestPhysBits > > Kai Huang (5): > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > stop_this_cpu() > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > relocate_kernel() > UBUNTU: SAUCE: x86/kexec: Reset TDX private memory on platforms with > TDX erratum > UBUNTU: SAUCE: x86/virt/tdx: Remove the !KEXEC_CORE dependency > UBUNTU: SAUCE: x86/virt/tdx: Add TDX memory reset notifier to reset > other private pages > > Thibault Ferrante (1): > UBUNTU: [Config] intel: Enable KEXEC/KDUMP related config > > arch/x86/Kconfig | 1 - > arch/x86/include/asm/kexec.h | 2 +- > arch/x86/include/asm/tdx.h | 16 +++++ > arch/x86/kernel/machine_kexec_64.c | 29 ++++++-- > arch/x86/kernel/process.c | 19 +++-- > arch/x86/kernel/relocate_kernel_64.S | 19 +++-- > arch/x86/kvm/cpuid.c | 41 ++++++++--- > arch/x86/kvm/mmu.h | 2 + > arch/x86/kvm/mmu/mmu.c | 5 ++ > arch/x86/virt/vmx/tdx/tdx.c | 100 +++++++++++++++++++++++++++ > debian.intel/config/annotations | 30 -------- > 11 files changed, 203 insertions(+), 61 deletions(-) > Acked-by: John Cabaj <john.cabaj@canonical.com>
On 26-06-2024 15:52, Thibault Ferrante wrote: > BugLink: https://bugs.launchpad.net/bugs/2070356 > > [ Impact ] > > Kexec is currently disabled on linux-intel as it was incompatible with tdx. > These patch make it possible to use it at the same time than TDX > > [ Fix ] > > A backport of the kexec enablement for tdx on 6.8 has been done by intel. > > [ Test Plan ] > > Use kexec to do a kdump on hardware support tdx. > It was tested by Intel and me on dedicated hardware. > > [ Where problems could occur ] > > Regression on TDX/Kexec related features. > > > Gerd Hoffmann (2): > UBUNTU: SAUCE: KVM: x86: Don't advertise guest.MAXPHYADDR as > host.MAXPHYADDR in CPUID > UBUNTU: SAUCE: KVM: x86: Advertise max mappable GPA in > CPUID.0x80000008.GuestPhysBits > > Kai Huang (5): > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > stop_this_cpu() > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > relocate_kernel() > UBUNTU: SAUCE: x86/kexec: Reset TDX private memory on platforms with > TDX erratum > UBUNTU: SAUCE: x86/virt/tdx: Remove the !KEXEC_CORE dependency > UBUNTU: SAUCE: x86/virt/tdx: Add TDX memory reset notifier to reset > other private pages > > Thibault Ferrante (1): > UBUNTU: [Config] intel: Enable KEXEC/KDUMP related config > > arch/x86/Kconfig | 1 - > arch/x86/include/asm/kexec.h | 2 +- > arch/x86/include/asm/tdx.h | 16 +++++ > arch/x86/kernel/machine_kexec_64.c | 29 ++++++-- > arch/x86/kernel/process.c | 19 +++-- > arch/x86/kernel/relocate_kernel_64.S | 19 +++-- > arch/x86/kvm/cpuid.c | 41 ++++++++--- > arch/x86/kvm/mmu.h | 2 + > arch/x86/kvm/mmu/mmu.c | 5 ++ > arch/x86/virt/vmx/tdx/tdx.c | 100 +++++++++++++++++++++++++++ > debian.intel/config/annotations | 30 -------- > 11 files changed, 203 insertions(+), 61 deletions(-) > Applied to noble:linux-intel master-next branch. Thanks -- Thibault
On 26-06-2024 15:52, Thibault Ferrante wrote: > BugLink: https://bugs.launchpad.net/bugs/2070356 > > [ Impact ] > > Kexec is currently disabled on linux-intel as it was incompatible with tdx. > These patch make it possible to use it at the same time than TDX > > [ Fix ] > > A backport of the kexec enablement for tdx on 6.8 has been done by intel. > > [ Test Plan ] > > Use kexec to do a kdump on hardware support tdx. > It was tested by Intel and me on dedicated hardware. > > [ Where problems could occur ] > > Regression on TDX/Kexec related features. > > > Gerd Hoffmann (2): > UBUNTU: SAUCE: KVM: x86: Don't advertise guest.MAXPHYADDR as > host.MAXPHYADDR in CPUID > UBUNTU: SAUCE: KVM: x86: Advertise max mappable GPA in > CPUID.0x80000008.GuestPhysBits > > Kai Huang (5): > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > stop_this_cpu() > UBUNTU: SAUCE: x86/kexec: do unconditional WBINVD for bare-metal in > relocate_kernel() > UBUNTU: SAUCE: x86/kexec: Reset TDX private memory on platforms with > TDX erratum > UBUNTU: SAUCE: x86/virt/tdx: Remove the !KEXEC_CORE dependency > UBUNTU: SAUCE: x86/virt/tdx: Add TDX memory reset notifier to reset > other private pages > > Thibault Ferrante (1): > UBUNTU: [Config] intel: Enable KEXEC/KDUMP related config > > arch/x86/Kconfig | 1 - > arch/x86/include/asm/kexec.h | 2 +- > arch/x86/include/asm/tdx.h | 16 +++++ > arch/x86/kernel/machine_kexec_64.c | 29 ++++++-- > arch/x86/kernel/process.c | 19 +++-- > arch/x86/kernel/relocate_kernel_64.S | 19 +++-- > arch/x86/kvm/cpuid.c | 41 ++++++++--- > arch/x86/kvm/mmu.h | 2 + > arch/x86/kvm/mmu/mmu.c | 5 ++ > arch/x86/virt/vmx/tdx/tdx.c | 100 +++++++++++++++++++++++++++ > debian.intel/config/annotations | 30 -------- > 11 files changed, 203 insertions(+), 61 deletions(-) > Applied to noble:linux-intel, thanks ! -- Thibault