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In ultravisor enabled systems, PTCR becomes ultravisor privileged only for writing and an attempt to write to it will cause a Hypervisor Emulation Assitance interrupt. This patch uses the set_ptcr_when_no_uv() function to restrict PTCR writing to only when ultravisor is disabled. Signed-off-by: Claudio Carvalho <cclaudio@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190822034838.27876-6-cclaudio@linux.ibm.com |
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asm | ||
uapi/asm |