| Message ID | 20241001043602.1116991-1-anshuman.khandual@arm.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | arm64/hw_breakpoint: Enable FEAT_Debugv8p9 | expand |
On 10/1/24 10:05, Anshuman Khandual wrote: > This series enables FEAT_Debugv8p9 thus extending breakpoint and watchpoint > support upto 64. This series is based on v6.12-rc1 after applying the KVM > FEAT_FGT2 FGU series. > > https://lore.kernel.org/all/20241001024356.1096072-1-anshuman.khandual@arm.com/ > > Cc: Jonathan Corbet <corbet@lwn.net> > Cc: Marc Zyngier <maz@kernel.org> > Cc: Oliver Upton <oliver.upton@linux.dev> > Cc: James Morse <james.morse@arm.com> > Cc: Suzuki K Poulose <suzuki.poulose@arm.com> > Cc: Catalin Marinas <catalin.marinas@arm.com> > Cc: Will Deacon <will@kernel.org> > Cc: Mark Brown <broonie@kernel.org> > Cc: Mark Rutland <mark.rutland@arm.com> > Cc: linux-arm-kernel@lists.infradead.org > Cc: kvmarm@lists.linux.dev > Cc: linux-kernel@vger.kernel.org > > Changes in V1: > > - Changed FTR_STRICT to FTR_NONSTRICT for the following ID_AA64DFR1_EL1 > register fields - ABL_CMPs, DPFZS, PMICNTR, CTX_CMPs, WRPs and BRPs > > Changes in RFC V2: > > https://lore.kernel.org/linux-arm-kernel/20240620092607.267132-1-anshuman.khandual@arm.com/ > > - This series has been split from RFC V1 dealing only with arm64 breakpoints > - Restored back DBG_MDSCR_MASK definition (unrelated change) > - Added preempt_disable()/enable() blocks between selecting banks and registers > > Changes in RFC: > > https://lore.kernel.org/all/20240405080008.1225223-1-anshuman.khandual@arm.com/ > > Anshuman Khandual (3): > arm64/cpufeature: Add field details for ID_AA64DFR1_EL1 register > arm64/boot: Enable EL2 requirements for FEAT_Debugv8p9 > arm64/hw_breakpoint: Enable FEAT_Debugv8p9 > > Documentation/arch/arm64/booting.rst | 19 ++++++++++ > arch/arm64/include/asm/debug-monitors.h | 1 + > arch/arm64/include/asm/el2_setup.h | 27 +++++++++++++ > arch/arm64/include/asm/hw_breakpoint.h | 50 ++++++++++++++++++++----- > arch/arm64/include/asm/kvm_arm.h | 1 + > arch/arm64/kernel/cpufeature.c | 21 ++++++++--- > arch/arm64/kernel/debug-monitors.c | 16 ++++++-- > arch/arm64/kernel/hw_breakpoint.c | 33 ++++++++++++++++ > 8 files changed, 149 insertions(+), 19 deletions(-) > Hello, Gentle ping ! Any updates on this series ? Although I realize that this series is dependent on the other FEAT_FGT2 series [1] for MDSELR_EL1 access handling in KVM and sysreg definitions, but just wondering if proposed breakpoint and watchpoint changes are okay or something needs to be changed. Thank you. [1] https://lore.kernel.org/all/20241001024356.1096072-1-anshuman.khandual@arm.com/ - Anshuman