On Thu, 21 Feb 2019 11:42:32 +0000 Dave Martin <[email protected]> wrote:
> Due to what looks like a typo dating back to the original addition > of FPEXC32_EL2 handling, KVM currently initialises this register to > an architecturally invalid value. > > As a result, the VECITR field (RES1) in bits [10:8] is initialised > with 0, and the two reserved (RES0) bits [6:5] are initialised with > 1. (In the Common VFP Subarchitecture as specified by ARMv7-A, > these two bits were IMP DEF. ARMv8-A removes them.) > > This patch changes the reset value from 0x70 to 0x700, which > reflects the architectural constraints and is presumably what was > originally intended. > > Cc: <[email protected]> # 4.12.x- > Cc: Marc Zyngier <[email protected]> > Cc: Christoffer Dall <[email protected]> > Fixes: 62a89c44954f ("arm64: KVM: 32bit handling of coprocessor traps") > Signed-off-by: Dave Martin <[email protected]> Applied to -next. Thanks, M. -- Without deviation from the norm, progress is not possible. _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
