| Series |
KVM: arm64: Add EL2 support to FEAT_S1PIE/S1POE
|
expand
-
[v5,00/37] KVM: arm64: Add EL2 support to FEAT_S1PIE/S1POE
-
[v5,01/37] arm64: Drop SKL0/SKL1 from TCR2_EL2
-
[v5,02/37] arm64: Remove VNCR definition for PIRE0_EL2
-
[v5,03/37] arm64: Add encoding for PIRE0_EL2
-
[v5,04/37] KVM: arm64: Drop useless struct s2_mmu in __kvm_at_s1e2()
-
[v5,05/37] KVM: arm64: nv: Add missing EL2->EL1 mappings in get_el2_to_el1_mapping()
-
[v5,06/37] KVM: arm64: nv: Handle CNTHCTL_EL2 specially
-
[v5,07/37] KVM: arm64: nv: Save/Restore vEL2 sysregs
-
[v5,08/37] KVM: arm64: Correctly access TCR2_EL1, PIR_EL1, PIRE0_EL1 with VHE
-
[v5,09/37] KVM: arm64: Extend masking facility to arbitrary registers
-
[v5,10/37] arm64: Define ID_AA64MMFR1_EL1.HAFDBS advertising FEAT_HAFT
-
[v5,11/37] KVM: arm64: Add TCR2_EL2 to the sysreg arrays
-
[v5,12/37] KVM: arm64: Sanitise TCR2_EL2
-
[v5,13/37] KVM: arm64: Add save/restore for TCR2_EL2
-
[v5,14/37] KVM: arm64: Add PIR{,E0}_EL2 to the sysreg arrays
-
[v5,15/37] KVM: arm64: Add save/restore for PIR{,E0}_EL2
-
[v5,16/37] KVM: arm64: Handle PIR{,E0}_EL2 traps
-
[v5,17/37] KVM: arm64: Sanitise ID_AA64MMFR3_EL1
-
[v5,18/37] KVM: arm64: Add AT fast-path support for S1PIE
-
[v5,19/37] KVM: arm64: Split S1 permission evaluation into direct and hierarchical parts
-
[v5,20/37] KVM: arm64: Disable hierarchical permissions when S1PIE is enabled
-
[v5,21/37] KVM: arm64: Implement AT S1PIE support
-
[v5,22/37] KVM: arm64: Add a composite EL2 visibility helper
-
[v5,23/37] KVM: arm64: Define helper for EL2 registers with custom visibility
-
[v5,24/37] KVM: arm64: Hide TCR2_EL1 from userspace when disabled for guests
-
[v5,25/37] KVM: arm64: Hide S1PIE registers from userspace when disabled for guests
-
[v5,26/37] KVM: arm64: Rely on visibility to let PIR*_ELx/TCR2_ELx UNDEF
-
[v5,27/37] arm64: Add encoding for POR_EL2
-
[v5,28/37] KVM: arm64: Drop bogus CPTR_EL2.E0POE trap routing
-
[v5,29/37] KVM: arm64: Subject S1PIE/S1POE registers to HCR_EL2.{TVM,TRVM}
-
[v5,30/37] KVM: arm64: Add kvm_has_s1poe() helper
-
[v5,31/37] KVM: arm64: Add basic support for POR_EL2
-
[v5,32/37] KVM: arm64: Add save/restore support for POR_EL2
-
[v5,33/37] KVM: arm64: Add POE save/restore for AT emulation fast-path
-
[v5,34/37] KVM: arm64: Disable hierarchical permissions when POE is enabled
-
[v5,35/37] KVM: arm64: Make PAN conditions part of the S1 walk context
-
[v5,36/37] KVM: arm64: Handle stage-1 permission overlays
-
[v5,37/37] KVM: arm64: Handle WXN attribute
|
This series serves a few purposes: - Complete the S1PIE/S1POE support to include EL2 - Sneak in the EL2 system register world switch As mentioned in few of the patches, this implementation relies on a very recent fix to the architecture (D22677 in [0]). Patches on top of v6.12-rc1. * From v4 [4]: - Reordered the series to reduce the churn - Fixed an embarassing bug where we would check for S1PIE instead of S1POE - Move VPIDR_EL2 reset to vcpu_put() - Fixed typos and stuff * From v3 [3]: - Added a few extra patches to deal with S1POE at EL2, including AT - Fix CPTR_EL2.E0POE non-sensical trap entry - Make sure that TVM and TRVM are handling the EL1 PIE/POE traps - Simplify some of the visibility cruft - Rebased on v6.12-rc1 * From v2 [2]: - Correctly reprogram the context for AT in the fast path when S1PIE is in use - Generalised sysreg RES0/RES1 masking, and added TCR2_EL2 RES0/RES1 bit handling - Fix TCR2_EL1, PIR_EL1, PIRE0_EL1 access with VHE - Add a bunch of missing registers to get_el2_to_el1_mapping() - Correctly map {TCR2,PIR,PIRE0}_EL2 to their EL1 equivalent on NV - Disable hierarchical permissions when S1PIE is enabled - Make EL2 world switch directly act on the vcpu rather than an arbitrary context - Remove SKL{0,1} from the TCR2_EL2 description * From the initial posting [1]: - Rebased on top of the AT support branch, which is currently sitting in kvmarm/next - Add handling for S1 indirect permission in AT, which I'm sure will give Alexandru another king-sized headache - Picked Mark Brown's series dealing with TCRX and S1PIE visibility, and slapped an extra fix on top for good measure - Picked up RBs from Joey, with thanks. [0] https://developer.arm.com/documentation/102105/ka-04/ [1] https://lore.kernel.org/r/20240813144738.2048302-1-maz@kernel.org [2] https://lore.kernel.org/r/20240903153834.1909472-1-maz@kernel.org [3] https://lore.kernel.org/r/20240911135151.401193-1-maz@kernel.org [4] https://lore.kernel.org/r/20241009190019.3222687-1-maz@kernel.org Marc Zyngier (34): arm64: Drop SKL0/SKL1 from TCR2_EL2 arm64: Remove VNCR definition for PIRE0_EL2 arm64: Add encoding for PIRE0_EL2 KVM: arm64: Drop useless struct s2_mmu in __kvm_at_s1e2() KVM: arm64: nv: Add missing EL2->EL1 mappings in get_el2_to_el1_mapping() KVM: arm64: nv: Handle CNTHCTL_EL2 specially KVM: arm64: nv: Save/Restore vEL2 sysregs KVM: arm64: Correctly access TCR2_EL1, PIR_EL1, PIRE0_EL1 with VHE KVM: arm64: Extend masking facility to arbitrary registers arm64: Define ID_AA64MMFR1_EL1.HAFDBS advertising FEAT_HAFT KVM: arm64: Add TCR2_EL2 to the sysreg arrays KVM: arm64: Sanitise TCR2_EL2 KVM: arm64: Add save/restore for TCR2_EL2 KVM: arm64: Add PIR{,E0}_EL2 to the sysreg arrays KVM: arm64: Add save/restore for PIR{,E0}_EL2 KVM: arm64: Handle PIR{,E0}_EL2 traps KVM: arm64: Sanitise ID_AA64MMFR3_EL1 KVM: arm64: Add AT fast-path support for S1PIE KVM: arm64: Split S1 permission evaluation into direct and hierarchical parts KVM: arm64: Disable hierarchical permissions when S1PIE is enabled KVM: arm64: Implement AT S1PIE support KVM: arm64: Add a composite EL2 visibility helper KVM: arm64: Rely on visibility to let PIR*_ELx/TCR2_ELx UNDEF arm64: Add encoding for POR_EL2 KVM: arm64: Drop bogus CPTR_EL2.E0POE trap routing KVM: arm64: Subject S1PIE/S1POE registers to HCR_EL2.{TVM,TRVM} KVM: arm64: Add kvm_has_s1poe() helper KVM: arm64: Add basic support for POR_EL2 KVM: arm64: Add save/restore support for POR_EL2 KVM: arm64: Add POE save/restore for AT emulation fast-path KVM: arm64: Disable hierarchical permissions when POE is enabled KVM: arm64: Make PAN conditions part of the S1 walk context KVM: arm64: Handle stage-1 permission overlays KVM: arm64: Handle WXN attribute Mark Brown (3): KVM: arm64: Define helper for EL2 registers with custom visibility KVM: arm64: Hide TCR2_EL1 from userspace when disabled for guests KVM: arm64: Hide S1PIE registers from userspace when disabled for guests arch/arm64/include/asm/kvm_host.h | 40 +- arch/arm64/include/asm/vncr_mapping.h | 1 - arch/arm64/kvm/at.c | 470 ++++++++++++++++++--- arch/arm64/kvm/emulate-nested.c | 12 +- arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h | 11 +- arch/arm64/kvm/hyp/nvhe/sysreg-sr.c | 2 +- arch/arm64/kvm/hyp/vhe/sysreg-sr.c | 160 ++++++- arch/arm64/kvm/nested.c | 40 +- arch/arm64/kvm/sys_regs.c | 145 ++++++- arch/arm64/tools/sysreg | 12 +- include/kvm/arm_arch_timer.h | 3 + 11 files changed, 776 insertions(+), 120 deletions(-)