[PATCH v4 00/43] KVM: arm64: Revamp Fine Grained Trap handling

[Marc Zyngier]

On Tue, 06 May 2025 17:43:05 +0100, Marc Zyngier wrote:
> This is yet another version of the series last posted at [1].
> 
> The eagled eye reviewer will have noticed that since v2, the series
> has more or less doubled in size for any reasonable metric (number of
> patches, number of lines added or deleted). It is therefore pretty
> urgent that this gets either merged or forgotten! ;-)
> 
> [...]

Applied to next, thanks!

[01/43] arm64: sysreg: Add ID_AA64ISAR1_EL1.LS64 encoding for FEAT_LS64WB
        commit: 2030396dac5f564ec85422ceb4327fcdb0054f83
[02/43] arm64: sysreg: Update ID_AA64MMFR4_EL1 description
        commit: eef33835bf6f297faa222f48bf941d57d2f8bda0
[03/43] arm64: sysreg: Add layout for HCR_EL2
        commit: d0f39259eff447fb4518777c36c7dffcf8b4ef9e
[04/43] arm64: sysreg: Replace HFGxTR_EL2 with HFG{R,W}TR_EL2
        commit: 0f013a524b240e7d67dc94d083a0d3ab72516ea3
[05/43] arm64: sysreg: Update ID_AA64PFR0_EL1 description
        commit: 9d737fddc93946d87f0ef60e00f506260534b1f4
[06/43] arm64: sysreg: Update PMSIDR_EL1 description
        commit: 894f2841f51fdeb1a7f61c74e00c883582a5af94
[07/43] arm64: sysreg: Update TRBIDR_EL1 description
        commit: 4533a0238df75d8215e72a4f3e006418ad6fe45d
[08/43] arm64: sysreg: Update CPACR_EL1 description
        commit: f062c19a9348d23a9bb7c6609ad17de3749157fd
[09/43] arm64: sysreg: Add registers trapped by HFG{R,W}TR2_EL2
        commit: 0be91cfbfdcd2f37ecf238760ce74c0ad2518e19
[10/43] arm64: sysreg: Add registers trapped by HDFG{R,W}TR2_EL2
        commit: dd161dc2dfcbdef19849f46745949b18f5ef54f9
[11/43] arm64: sysreg: Add system instructions trapped by HFGIRT2_EL2
        commit: 7c9cb893ae3e06c9f38bd86d62992eae906bf2b7
[12/43] arm64: Remove duplicated sysreg encodings
        commit: 7a11d98d6e4893e9d8b145f211ffa94ec4e6be4e
[13/43] arm64: tools: Resync sysreg.h
        commit: 3654f454bcfdd17446544841bcac3803907122ff
[14/43] arm64: Add syndrome information for trapped LD64B/ST64B{,V,V0}
        commit: 7c7d56fcebd0c029c73c41d8daba49f9787eb9c2
[15/43] arm64: Add FEAT_FGT2 capability
        commit: fbc8a4e137e5673600ec276b06ca31a46967167b
[16/43] KVM: arm64: Tighten handling of unknown FGT groups
        commit: 04af8a39684f471e3785261f5d2f0df265fd77b6
[17/43] KVM: arm64: Simplify handling of negative FGT bits
        commit: 4b4af68dd972aedc4193bd886e383c123511d275
[18/43] KVM: arm64: Handle trapping of FEAT_LS64* instructions
        commit: 2e04378f1a766b9a8962004962d32e5df06a5707
[19/43] KVM: arm64: Restrict ACCDATA_EL1 undef to FEAT_LS64_ACCDATA being disabled
        commit: 9308d0b1d7abe36f0ee2052b0ffceb7869e83f8e
[20/43] KVM: arm64: Don't treat HCRX_EL2 as a FGT register
        commit: 09be03c6b54dd8959eba6cb25051c20a475ecde9
[21/43] KVM: arm64: Plug FEAT_GCS handling
        commit: 5329358c222fec1132169ab3de9973aa4cd63aa9
[22/43] KVM: arm64: Compute FGT masks from KVM's own FGT tables
        commit: 1b8570be89f8436b25bddc8afd7e54fcd906c3aa
[23/43] KVM: arm64: Add description of FGT bits leading to EC!=0x18
        commit: 3164899c21fd915f4ca60a215fe57a671a9699bc
[24/43] KVM: arm64: Use computed masks as sanitisers for FGT registers
        commit: 7ed43d84c17cc90e683b3901e92993864756a601
[25/43] KVM: arm64: Unconditionally configure fine-grain traps
        commit: ea266c72496873468bd2fdfd53ac1db203330142
[26/43] KVM: arm64: Propagate FGT masks to the nVHE hypervisor
        commit: 311ba55a5f8637d9a79035d4ea624236283c8c99
[27/43] KVM: arm64: Use computed FGT masks to setup FGT registers
        commit: aed34b6d2134efcfaf4c123e02b1926bb789f5c3
[28/43] KVM: arm64: Remove hand-crafted masks for FGT registers
        commit: 3ce9bbba935714c344bcff096973b6daa29cf857
[29/43] KVM: arm64: Use KVM-specific HCRX_EL2 RES0 mask
        commit: ef6d7d2682d948df217db73985e0a159305c7743
[30/43] KVM: arm64: Handle PSB CSYNC traps
        commit: 397411c743c77a9c1d90f407b502010227a259dc
[31/43] KVM: arm64: Switch to table-driven FGU configuration
        commit: 63d423a7635bca6d817a30adff29be58ee99c6d5
[32/43] KVM: arm64: Validate FGT register descriptions against RES0 masks
        commit: 938a79d0aa8dd0f75e4302a67006db4f45e1ce4e
[33/43] KVM: arm64: Use FGT feature maps to drive RES0 bits
        commit: c6cbe6a4c1bdce88bb0384df0e3679e4ef81dcd6
[34/43] KVM: arm64: Allow kvm_has_feat() to take variable arguments
        commit: a764b56bf90b6d758ff21408c13cd686c2519ef9
[35/43] KVM: arm64: Use HCRX_EL2 feature map to drive fixed-value bits
        commit: beed4448418ee2e2f48a9d5d6c01fe79df200bc2
[36/43] KVM: arm64: Use HCR_EL2 feature map to drive fixed-value bits
        commit: b2a324ff01feac7ea1ffe5a521cffc2749e9f113
[37/43] KVM: arm64: Add FEAT_FGT2 registers to the VNCR page
        commit: df56f1ccb0ec02570a0740703c63cac6bf0ec57c
[38/43] KVM: arm64: Add sanitisation for FEAT_FGT2 registers
        commit: 4bc0fe089840695538aff879e25efab2cdad22bd
[39/43] KVM: arm64: Add trap routing for FEAT_FGT2 registers
        commit: fc631df00c4cef4a95b25ac87842b9d1ec9ceaa1
[40/43] KVM: arm64: Add context-switch for FEAT_FGT2 registers
        commit: 1ba41c816007107e0f774d6803e0cbbbb40a47e0
[41/43] KVM: arm64: Allow sysreg ranges for FGT descriptors
        commit: f654e9e47eac95424b8ef4b285f331604460174b
[42/43] KVM: arm64: Add FGT descriptors for FEAT_FGT2
        commit: af2d78dcadbc2386610566ab2052fee78993fb53
[43/43] KVM: arm64: Handle TSB CSYNC traps
        commit: 98dbe56a016a4ea457ef312637a625d3c627dbd9

Cheers,

	M.
-- 
Without deviation from the norm, progress is not possible.