On 2016/4/13 5:16, Paolo Bonzini wrote:
On 12/04/2016 15:34, Zhu Yijun wrote:I run kvm-unit-tests on rhel_7.0, and the apic unittest failed.kvm-unit-tests always corresponds to the latest kernel version (sometimes even the _next_ kernel version). If you want to use it in RHEL, you have to look at the failures one by one, find the patch that fixed it and confirm that it is not present in RHEL (it might be present in RHEL 7.1 for example). You will then get a set of known failures, and you can patch kvm-unit-tests to remove those tests.
Yes, Paolo is right. Even for RHEL7u2, I also saw some failures when running km-unit-tests. All the failures are due to lack of corresponding patch which already in upstream KVM. You need to figure out it one by one and backport the patch manually.
qemu-kvm -enable-kvm -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -kernel x86/apic.flat -smp 2 -cpu qemu64,+x2apic,+tsc-deadline enabling apic enabling apic paging enabled cr0 = 80010011 cr3 = 7fff000 cr4 = 20 apic version: 1050014 PASS: apic existence x2apic enabled FAIL: x2apic enabled to invalid state FAIL: x2apic enabled to apic enabled FAIL: disabled to invalid state FAIL: disabled to x2apic enabled FAIL: apic enabled to invalid state PASS: apicbase: relocate apic FAIL: apicbase: reserved physaddr bits FAIL: apicbase: reserved low bits PASS: self ipi PASS: nmi-after-sti PASS: multiple nmi tsc deadline timer not detected SUMMARY: 12 tests, 7 unexpected failures I found that all the tests with "test_for_exception()" failed. After looking at this function, I cannot understand the macro: "#define set_exception_jmpbuf(jmpbuf) \ (setjmp(jmpbuf) ? : (__set_exception_jmpbuf(&(jmpbuf)), 0))" So it it always return 0?If setjmp(jmpbuf) returns non-zero, it returns the non-zero value that setjmp returned. If it returns zero, it calls __set_exception_jmpbuf(&jmpbuf) and then returns zero. The source for the function is in lib/x86/desc.c, and it is simply this: static jmp_buf *exception_jmpbuf; void __set_exception_jmpbuf(jmp_buf *addr) { exception_jmpbuf = addr; } Thanks, Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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