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Merge tag 'kvm-x86-fixes-6.17-rc7' of https://github.com/kvm-x86/linux into HEAD

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KVM x86 fixes and a selftest fix for 6.17-rcN

 - Use array_index_nospec() to sanitize the target vCPU ID when handling PV
   IPIs and yields as the ID is guest-controlled.

 - Drop a superfluous cpumask_empty() check when reclaiming SEV memory, as
   the common case, by far, is that at least one CPU will have entered the
   VM, and wbnoinvd_on_cpus_mask() will naturally handle the rare case where
   the set of have_run_cpus is empty.

 - Rename the is_signed_type() macro in kselftest_harness.h to is_signed_var()
   to fix a collision with linux/overflow.h.  The collision generates compiler
   warnings due to the two macros having different implementations.
This commit is contained in:
Paolo Bonzini
2025-08-27 04:18:01 -04:00
parent 1b237f190e dce1b33ed7
commit 22b2ca023f
4 changed files with 12 additions and 11 deletions
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4
tools/testing/selftests/kselftest_harness.h
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@@ -751,7 +751,7 @@
for (; _metadata->trigger; _metadata->trigger = \
__bail(_assert, _metadata))
#define is_signed_type(var) (!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
#define is_signed_var(var) (!!(((__typeof__(var))(-1)) < (__typeof__(var))1))
#define __EXPECT(_expected, _expected_str, _seen, _seen_str, _t, _assert) do { \
/* Avoid multiple evaluation of the cases */ \
@@ -759,7 +759,7 @@
__typeof__(_seen) __seen = (_seen); \
if (!(__exp _t __seen)) { \
/* Report with actual signedness to avoid weird output. */ \
switch (is_signed_type(__exp) * 2 + is_signed_type(__seen)) { \
switch (is_signed_var(__exp) * 2 + is_signed_var(__seen)) { \
case 0: { \
uintmax_t __exp_print = (uintmax_t)__exp; \
uintmax_t __seen_print = (uintmax_t)__seen; \