| Message ID | 20210310175751.3320106-16-qperret@google.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | KVM: arm64: A stage 2 for the host | expand |
On Wed, Mar 10, 2021 at 05:57:32PM +0000, Quentin Perret wrote: > We will soon need to turn the EL2 stage 1 MMU on and off in nVHE > protected mode, so refactor the set_sctlr_el1 macro to make it usable > for that purpose. > > Signed-off-by: Quentin Perret <qperret@google.com> > --- > arch/arm64/include/asm/assembler.h | 14 +++++++++++--- > 1 file changed, 11 insertions(+), 3 deletions(-) Acked-by: Will Deacon <will@kernel.org> Will
diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index ca31594d3d6c..fb651c1f26e9 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -676,11 +676,11 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .endm /* - * Set SCTLR_EL1 to the passed value, and invalidate the local icache + * Set SCTLR_ELx to the @reg value, and invalidate the local icache * in the process. This is called when setting the MMU on. */ -.macro set_sctlr_el1, reg - msr sctlr_el1, \reg +.macro set_sctlr, sreg, reg + msr \sreg, \reg isb /* * Invalidate the local I-cache so that any instructions fetched @@ -692,6 +692,14 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU isb .endm +.macro set_sctlr_el1, reg + set_sctlr sctlr_el1, \reg +.endm + +.macro set_sctlr_el2, reg + set_sctlr sctlr_el2, \reg +.endm + /* * Check whether to yield to another runnable task from kernel mode NEON code * (which runs with preemption disabled).
We will soon need to turn the EL2 stage 1 MMU on and off in nVHE protected mode, so refactor the set_sctlr_el1 macro to make it usable for that purpose. Signed-off-by: Quentin Perret <qperret@google.com> --- arch/arm64/include/asm/assembler.h | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-)