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| author |   Paolo Bonzini <pbonzini@redhat.com> | 2020-01-30 18:13:14 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-01-30 18:13:14 +0100 |
| commit | 621ab20c06e0c0b45eb2382c048a0426bbff9b0e (patch) | |
| tree | 063fe0957312e78dffed221663bc0251b7106e8b /Documentation | |
| parent | KVM: x86: Use a typedef for fastop functions (diff) | |
| parent | KVM: arm64: Treat emulated TVAL TimerValue as a signed 32-bit integer (diff) | |
| download | linux-dev-621ab20c06e0c0b45eb2382c048a0426bbff9b0e.tar.xz linux-dev-621ab20c06e0c0b45eb2382c048a0426bbff9b0e.zip | |
Merge tag 'kvmarm-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/arm updates for Linux 5.6
- Fix MMIO sign extension
- Fix HYP VA tagging on tag space exhaustion
- Fix PSTATE/CPSR handling when generating exception
- Fix MMU notifier's advertizing of young pages
- Fix poisoned page handling
- Fix PMU SW event handling
- Fix TVAL register access
- Fix AArch32 external abort injection
- Fix ITS unmapped collection handling
- Various cleanups
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/virt/kvm/api.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/virt/kvm/api.txt b/Documentation/virt/kvm/api.txt index ebb37b34dcfc..3a0c819c3573 100644 --- a/Documentation/virt/kvm/api.txt +++ b/Documentation/virt/kvm/api.txt @@ -2196,6 +2196,15 @@ arm64 CCSIDR registers are demultiplexed by CSSELR value: arm64 system registers have the following id bit patterns: 0x6030 0000 0013 <op0:2> <op1:3> <crn:4> <crm:4> <op2:3> +WARNING: + Two system register IDs do not follow the specified pattern. These + are KVM_REG_ARM_TIMER_CVAL and KVM_REG_ARM_TIMER_CNT, which map to + system registers CNTV_CVAL_EL0 and CNTVCT_EL0 respectively. These + two had their values accidentally swapped, which means TIMER_CVAL is + derived from the register encoding for CNTVCT_EL0 and TIMER_CNT is + derived from the register encoding for CNTV_CVAL_EL0. As this is + API, it must remain this way. + arm64 firmware pseudo-registers have the following bit pattern: 0x6030 0000 0014 <regno:16> |