Heiko Carstens 7453e81061 s390/cmma: fix detection of DAT pages ... commit 44d9304524 upstream. If the cmma no-dat feature is available the kernel page tables are walked to identify and mark all pages which are used for address translation (all region, segment, and page tables). In a subsequent loop all other pages are marked as "no-dat" pages with the ESSA instruction. This information is visible to the hypervisor, so that the hypervisor can optimize purging of guest TLB entries. The initial loop however is incorrect: only the first three of the four pages which belong to segment and region tables will be marked as being used for DAT. The last page is incorrectly marked as no-dat. This can result in incorrect guest TLB flushes. Fix this by simply marking all four pages. Cc: <stable@vger.kernel.org> Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-11-28 17:20:05 +00:00
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alpha
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arm
arm64	arm64: dts: qcom: ipq6018: Fix tcsr_mutex register size	2023-11-28 17:20:03 +00:00
csky
hexagon
ia64
loongarch
m68k
microblaze
mips	mips: use nth_page() in place of direct struct page manipulation	2023-11-28 17:20:05 +00:00
nios2
openrisc
parisc	parisc/pdc: Add width field to struct pdc_model	2023-11-28 17:20:00 +00:00
powerpc	powerpc/perf: Fix disabling BHRB and instruction sampling	2023-11-28 17:19:55 +00:00
riscv	riscv: split cache ops out of dma-noncoherent.c	2023-11-28 17:19:49 +00:00
s390	s390/cmma: fix detection of DAT pages	2023-11-28 17:20:05 +00:00
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sparc
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x86	acpi/processor: sanitize _OSC/_PDC capabilities for Xen dom0	2023-11-28 17:19:57 +00:00
xtensa
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