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authorJan Beulich <jbeulich@suse.com>2015-06-02 15:07:01 +0000
committerStefano Stabellini <stefano.stabellini@eu.citrix.com>2015-06-02 15:07:01 +0000
commita88a3f887181605f4487a22bdfb7d87ffafde5d9 (patch)
tree70237a1fadfe82180fd8cf3b8fd4276c18c74432
parent0ad3393ad032f76e88b4dbd04d36ad84dff75dd6 (diff)
xen/pt: add a few PCI config space field descriptions
Since the next patch will turn all not explicitly described fields read-only by default, those fields that have guest writable bits need to be given explicit descriptors. This is a preparatory patch for XSA-131. Signed-off-by: Jan Beulich <jbeulich@suse.com>
-rw-r--r--hw/xen/xen_pt_config_init.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/hw/xen/xen_pt_config_init.c b/hw/xen/xen_pt_config_init.c
index efd8bac00f..19f926b2cc 100644
--- a/hw/xen/xen_pt_config_init.c
+++ b/hw/xen/xen_pt_config_init.c
@@ -754,6 +754,15 @@ static XenPTRegInfo xen_pt_emu_reg_vpd[] = {
.u.b.write = xen_pt_byte_reg_write,
},
{
+ .offset = PCI_VPD_ADDR,
+ .size = 2,
+ .ro_mask = 0x0003,
+ .emu_mask = 0x0003,
+ .init = xen_pt_common_reg_init,
+ .u.w.read = xen_pt_word_reg_read,
+ .u.w.write = xen_pt_word_reg_write,
+ },
+ {
.size = 0,
},
};
@@ -889,6 +898,16 @@ static XenPTRegInfo xen_pt_emu_reg_pcie[] = {
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_word_reg_write,
},
+ /* Device Status reg */
+ {
+ .offset = PCI_EXP_DEVSTA,
+ .size = 2,
+ .res_mask = 0xFFC0,
+ .ro_mask = 0x0030,
+ .init = xen_pt_common_reg_init,
+ .u.w.read = xen_pt_word_reg_read,
+ .u.w.write = xen_pt_word_reg_write,
+ },
/* Link Control reg */
{
.offset = PCI_EXP_LNKCTL,
@@ -900,6 +919,15 @@ static XenPTRegInfo xen_pt_emu_reg_pcie[] = {
.u.w.read = xen_pt_word_reg_read,
.u.w.write = xen_pt_word_reg_write,
},
+ /* Link Status reg */
+ {
+ .offset = PCI_EXP_LNKSTA,
+ .size = 2,
+ .ro_mask = 0x3FFF,
+ .init = xen_pt_common_reg_init,
+ .u.w.read = xen_pt_word_reg_read,
+ .u.w.write = xen_pt_word_reg_write,
+ },
/* Device Control 2 reg */
{
.offset = 0x28,