On Thu, 21 Feb 2019 11:42:32 +0000 Dave Martin Dave.Martin@arm.com 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
- (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: stable@vger.kernel.org # 4.12.x- Cc: Marc Zyngier marc.zyngier@arm.com Cc: Christoffer Dall christoffer.dall@arm.com Fixes: 62a89c44954f ("arm64: KVM: 32bit handling of coprocessor traps") Signed-off-by: Dave Martin Dave.Martin@arm.com
Applied to -next.
Thanks,
M.