[PATCH v3] KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context()

[Michael Ellerman]

On Tue, 10 May 2022 14:37:17 +0200, Alexander Graf wrote:
> Commit 863771a28e27 ("powerpc/32s: Convert switch_mmu_context() to C")
> moved the switch_mmu_context() to C. While in principle a good idea, it
> meant that the function now uses the stack. The stack is not accessible
> from real mode though.
> 
> So to keep calling the function, let's turn on MSR_DR while we call it.
> That way, all pointer references to the stack are handled virtually.
> 
> [...]

Applied to powerpc/fixes.

[1/1] KVM: PPC: Book3S PR: Enable MSR_DR for switch_mmu_context()
      https://git.kernel.org/powerpc/c/ee8348496c77e3737d0a6cda307a521f2cff954f

cheers