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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [linux-2.6.18-xen] [IA64] Linux support for debug_op hypercall
# HG changeset patch
# User Alex Williamson <alex.williamson@xxxxxx>
# Date 1190400851 21600
# Node ID 351a9d2f7dd43be82188c263de153c9165a5e04e
# Parent 15d0677bf2b5aa604bc50b7bfdbc32eebea69e24
[IA64] Linux support for debug_op hypercall
Signed-off-by: Tristan Gingold <tgingold@xxxxxxx>
---
arch/ia64/xen/xcom_privcmd.c | 32 +++++++++++++-
include/asm-ia64/hypercall.h | 8 +++
include/xen/interface/arch-ia64.h | 86 ++++++++++++++++++++++++++++++++++----
3 files changed, 118 insertions(+), 8 deletions(-)
diff -r 15d0677bf2b5 -r 351a9d2f7dd4 arch/ia64/xen/xcom_privcmd.c
--- a/arch/ia64/xen/xcom_privcmd.c Mon Sep 17 13:49:15 2007 -0600
+++ b/arch/ia64/xen/xcom_privcmd.c Fri Sep 21 12:54:11 2007 -0600
@@ -713,7 +713,7 @@ xencomm_privcmd_ia64_dom0vp_op(privcmd_h
{
int cmd = hypercall->arg[0];
int ret;
-
+
switch (cmd) {
case IA64_DOM0VP_fpswa_revision: {
unsigned int revision;
@@ -743,6 +743,34 @@ xencomm_privcmd_ia64_dom0vp_op(privcmd_h
break;
}
return ret;
+}
+
+static int
+xencomm_privcmd_ia64_debug_op(privcmd_hypercall_t *hypercall)
+{
+ int cmd = hypercall->arg[0];
+ unsigned long domain = hypercall->arg[1];
+ struct xencomm_handle *desc;
+ int ret;
+
+ switch (cmd) {
+ case XEN_IA64_DEBUG_OP_SET_FLAGS:
+ case XEN_IA64_DEBUG_OP_GET_FLAGS:
+ break;
+ default:
+ printk("%s: unknown IA64 DEBUGOP %d\n", __func__, cmd);
+ return -EINVAL;
+ }
+
+ desc = xencomm_map((void *)hypercall->arg[2],
+ sizeof(xen_ia64_debug_op_t));
+ if (desc == NULL)
+ return -ENOMEM;
+
+ ret = xencomm_arch_hypercall_ia64_debug_op(cmd, domain, desc);
+
+ xencomm_free(desc);
+ return ret;
}
int
@@ -769,6 +797,8 @@ privcmd_hypercall(privcmd_hypercall_t *h
return xencomm_privcmd_sched_op(hypercall);
case __HYPERVISOR_ia64_dom0vp_op:
return xencomm_privcmd_ia64_dom0vp_op(hypercall);
+ case __HYPERVISOR_ia64_debug_op:
+ return xencomm_privcmd_ia64_debug_op(hypercall);
default:
printk("%s: unknown hcall (%ld)\n", __func__, hypercall->op);
return -ENOSYS;
diff -r 15d0677bf2b5 -r 351a9d2f7dd4 include/asm-ia64/hypercall.h
--- a/include/asm-ia64/hypercall.h Mon Sep 17 13:49:15 2007 -0600
+++ b/include/asm-ia64/hypercall.h Fri Sep 21 12:54:11 2007 -0600
@@ -407,6 +407,14 @@ xencomm_arch_hypercall_fpswa_revision(st
{
return _hypercall2(int, ia64_dom0vp_op,
IA64_DOM0VP_fpswa_revision, arg);
+}
+
+static inline int
+xencomm_arch_hypercall_ia64_debug_op(unsigned long cmd,
+ unsigned long domain,
+ struct xencomm_handle *arg)
+{
+ return _hypercall3(int, ia64_debug_op, cmd, domain, arg);
}
static inline int
diff -r 15d0677bf2b5 -r 351a9d2f7dd4 include/xen/interface/arch-ia64.h
--- a/include/xen/interface/arch-ia64.h Mon Sep 17 13:49:15 2007 -0600
+++ b/include/xen/interface/arch-ia64.h Fri Sep 21 12:54:11 2007 -0600
@@ -236,8 +236,7 @@ struct mapped_regs {
int banknum; // 0 or 1, which virtual register bank is active
unsigned long rrs[8]; // region registers
unsigned long krs[8]; // kernel registers
- unsigned long pkrs[8]; // protection key registers
- unsigned long tmp[8]; // temp registers (e.g. for hyperprivops)
+ unsigned long tmp[16]; // temp registers (e.g. for hyperprivops)
};
};
};
@@ -294,6 +293,8 @@ struct ia64_tr_entry {
unsigned long vadr;
unsigned long rid;
};
+typedef struct ia64_tr_entry ia64_tr_entry_t;
+DEFINE_XEN_GUEST_HANDLE(ia64_tr_entry_t);
struct vcpu_tr_regs {
struct ia64_tr_entry itrs[8];
@@ -557,14 +558,85 @@ struct xen_ia64_boot_param {
/* Fast and light hypercalls. */
#define __HYPERVISOR_ia64_fast_eoi __HYPERVISOR_arch_1
+/* Extra debug features. */
+#define __HYPERVISOR_ia64_debug_op __HYPERVISOR_arch_2
+
+/* Set/Get extra conditions to break. */
+#define XEN_IA64_DEBUG_OP_SET_FLAGS 1
+#define XEN_IA64_DEBUG_OP_GET_FLAGS 2
+
+/* Break on kernel single step. */
+#define XEN_IA64_DEBUG_ON_KERN_SSTEP (1 << 0)
+
+/* Break on kernel debug (breakpoint or watch point). */
+#define XEN_IA64_DEBUG_ON_KERN_DEBUG (1 << 1)
+
+/* Break on kernel taken branch. */
+#define XEN_IA64_DEBUG_ON_KERN_TBRANCH (1 << 2)
+
+/* Break on interrupt injection. */
+#define XEN_IA64_DEBUG_ON_EXTINT (1 << 3)
+
+/* Break on interrupt injection. */
+#define XEN_IA64_DEBUG_ON_EXCEPT (1 << 4)
+
+/* Break on event injection. */
+#define XEN_IA64_DEBUG_ON_EVENT (1 << 5)
+
+/* Break on privop/virtualized instruction (slow path only). */
+#define XEN_IA64_DEBUG_ON_PRIVOP (1 << 6)
+
+/* Break on emulated PAL call (at entry). */
+#define XEN_IA64_DEBUG_ON_PAL (1 << 7)
+
+/* Break on emulated SAL call (at entry). */
+#define XEN_IA64_DEBUG_ON_SAL (1 << 8)
+
+/* Break on emulated EFI call (at entry). */
+#define XEN_IA64_DEBUG_ON_EFI (1 << 9)
+
+/* Break on rfi emulation (slow path only, before exec). */
+#define XEN_IA64_DEBUG_ON_RFI (1 << 10)
+
+/* Break on address translation switch. */
+#define XEN_IA64_DEBUG_ON_MMU (1 << 11)
+
+/* Break on bad guest physical address. */
+#define XEN_IA64_DEBUG_ON_BAD_MPA (1 << 12)
+
+/* Force psr.ss bit. */
+#define XEN_IA64_DEBUG_FORCE_SS (1 << 13)
+
+/* Force psr.db bit. */
+#define XEN_IA64_DEBUG_FORCE_DB (1 << 14)
+
+/* Break on ITR/PTR. */
+#define XEN_IA64_DEBUG_ON_TR (1 << 15)
+
+/* Break on ITC/PTC.L/PTC.G/PTC.GA. */
+#define XEN_IA64_DEBUG_ON_TC (1 << 16)
+
+/* Get translation cache. */
+#define XEN_IA64_DEBUG_OP_GET_TC 3
+
+/* Translate virtual address to guest physical address. */
+#define XEN_IA64_DEBUG_OP_TRANSLATE 4
+
+#ifndef __ASSEMBLY__
+union xen_ia64_debug_op {
+ uint64_t flags;
+ struct xen_ia64_debug_vtlb {
+ uint64_t nbr; /* IN/OUT */
+ XEN_GUEST_HANDLE_64(ia64_tr_entry_t) tr; /* IN/OUT */
+ } vtlb;
+};
+typedef union xen_ia64_debug_op xen_ia64_debug_op_t;
+DEFINE_XEN_GUEST_HANDLE(xen_ia64_debug_op_t);
+#endif /* __ASSEMBLY__ */
+
/* Xencomm macros. */
#define XENCOMM_INLINE_MASK 0xf800000000000000UL
#define XENCOMM_INLINE_FLAG 0x8000000000000000UL
-
-#define XENCOMM_IS_INLINE(addr) \
- (((unsigned long)(addr) & XENCOMM_INLINE_MASK) == XENCOMM_INLINE_FLAG)
-#define XENCOMM_INLINE_ADDR(addr) \
- ((unsigned long)(addr) & ~XENCOMM_INLINE_MASK)
#ifndef __ASSEMBLY__
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