On 12/10/2015 11:53 AM, Boris Ostrovsky wrote:
Especially given that PVH dom0 is not booting for me, as I just found
out:
...
(XEN) d0v0 EPT violation 0x1aa (-w-/r-x) gpa 0x000000c0008116 mfn
0xc0008 type 5
(XEN) d0v0 Walking EPT tables for GFN c0008:
(XEN) d0v0 epte 800000082bf50007
(XEN) d0v0 epte 800000082bf19007
(XEN) d0v0 epte 800000043c6f9007
(XEN) d0v0 epte 80500000c0008805
(XEN) d0v0 --- GLA 0xffffc90020008116
(XEN) domain_crash called from vmx.c:2816
(XEN) Domain 0 (vcpu#0) crashed on cpu#0:
(XEN) ----[ Xen-4.7-unstable x86_64 debug=y Tainted: C ]----
(XEN) CPU: 0
(XEN) RIP: 0010:[<ffffffff816150dc>]
(XEN) RFLAGS: 0000000000010046 CONTEXT: hvm guest (d0v0)
(XEN) rax: 000000000000001d rbx: 0000000000000000 rcx:
ffff88014700f9b8
(XEN) rdx: 00000000000000ff rsi: 0000000000000000 rdi:
0000000000000000
(XEN) rbp: ffff88014700fa18 rsp: ffff88014700f9e8 r8:
ffff88014700f9c0
(XEN) r9: 000000000000001d r10: ffffffff8189c7f0 r11:
0000000000000000
(XEN) r12: ffffc90020008000 r13: ffffc90020008116 r14:
0000000000000002
(XEN) r15: 000000000000001d cr0: 0000000080050033 cr4:
00000000000406f0
(XEN) cr3: 0000000001c0e000 cr2: 0000000000000000
(XEN) ds: 0000 es: 0000 fs: 0000 gs: 0000 ss: 0000 cs: 0010
(XEN) Guest stack trace from rsp=ffff88014700f9e8:
(XEN) Fault while accessing guest memory.
(XEN) Hardware Dom0 crashed: rebooting machine in 5 seconds.
We haven't been running regression tests for PVH dom0 so I don't know
how long this has been broken.
This is broken by 9256f66c1606 ("x86/PCI: intercept all PV Dom0 MMCFG
writes").
-boris
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