KVM has not passed port 0x80 directly to the hardware for three years
(commit d59d51f08801, "KVM: VMX: remove I/O port 0x80 bypass on Intel
hosts", 2017-12-05) so the port80 test is a useless duplicate of the
outl_to_pmtimer vmexit test, without the reporting of how long the
access takes and without adaptive choice of the number of iterations.
Remove it.
Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>
---
x86/Makefile.common | 2 +-
x86/README | 1 -
x86/port80.c | 12 ------------
x86/unittests.cfg | 3 ---
4 files changed, 1 insertion(+), 17 deletions(-)
delete mode 100644 x86/port80.c
diff --git a/x86/Makefile.common b/x86/Makefile.common
index b942086..55f7f28 100644
--- a/x86/Makefile.common
+++ b/x86/Makefile.common
@@ -53,7 +53,7 @@ FLATLIBS = lib/libcflat.a $(libgcc)
@chmod a-x $@
tests-common = $(TEST_DIR)/vmexit.flat $(TEST_DIR)/tsc.flat \
- $(TEST_DIR)/smptest.flat $(TEST_DIR)/port80.flat \
+ $(TEST_DIR)/smptest.flat \
$(TEST_DIR)/realmode.flat $(TEST_DIR)/msr.flat \
$(TEST_DIR)/hypercall.flat $(TEST_DIR)/sieve.flat \
$(TEST_DIR)/kvmclock_test.flat $(TEST_DIR)/eventinj.flat \
diff --git a/x86/README b/x86/README
index 218fe1a..8b0b118 100644
--- a/x86/README
+++ b/x86/README
@@ -27,7 +27,6 @@ Tests in this directory and what they do:
emulator: move to/from regs, cmps, push, pop, to/from cr8, smsw and lmsw
hypercall: intel and amd hypercall insn
msr: write to msr (only KERNEL_GS_BASE for now)
- port80: lots of out to port 80
realmode: goes back to realmode, shld, push/pop, mov immediate, cmp
immediate, add immediate, io, eflags instructions
(clc, cli, etc.), jcc short, jcc near, call, long jmp, xchg
diff --git a/x86/port80.c b/x86/port80.c
deleted file mode 100644
index 791431c..0000000
--- a/x86/port80.c
+++ /dev/null
@@ -1,12 +0,0 @@
-#include "libcflat.h"
-
-int main(void)
-{
- int i;
-
- printf("begining port 0x80 write test\n");
- for (i = 0; i < 10000000; ++i)
- asm volatile("outb %al, $0x80");
- printf("done\n");
- return 0;
-}
diff --git a/x86/unittests.cfg b/x86/unittests.cfg
index c035c79..b48c98b 100644
--- a/x86/unittests.cfg
+++ b/x86/unittests.cfg
@@ -175,9 +175,6 @@ extra_params = -machine vmport=on -cpu host
check = /sys/module/kvm/parameters/enable_vmware_backdoor=Y
arch = x86_64
-[port80]
-file = port80.flat
-
[realmode]
file = realmode.flat
--
2.26.2
