Upstream-Status: Backport Signed-off-by: Kai Kang From 45ebe3916ab16f859ed930e92fbd52d84d5dcdaf Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Tue, 2 Jun 2015 15:07:01 +0000 Subject: xen/pt: mark all PCIe capability bits read-only Bug-Debian: http://bugs.debian.org/787547 xen_pt_emu_reg_pcie[]'s PCI_EXP_DEVCAP needs to cover all bits as read- only to avoid unintended write-back (just a precaution, the field ought to be read-only in hardware). This is a preparatory patch for XSA-131. Signed-off-by: Jan Beulich Reviewed-by: Stefano Stabellini --- hw/xen/xen_pt_config_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/hw/xen/xen_pt_config_init.c b/hw/xen/xen_pt_config_init.c index 3833b9e..9f6c00e 100644 --- a/hw/xen/xen_pt_config_init.c +++ b/hw/xen/xen_pt_config_init.c @@ -871,7 +871,7 @@ static XenPTRegInfo xen_pt_emu_reg_pcie[] = { .offset = PCI_EXP_DEVCAP, .size = 4, .init_val = 0x00000000, - .ro_mask = 0x1FFCFFFF, + .ro_mask = 0xFFFFFFFF, .emu_mask = 0x10000000, .init = xen_pt_common_reg_init, .u.dw.read = xen_pt_long_reg_read, -- 2.1.4