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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Add support for privified mov-from-pmd
ChangeSet 1.1423.5.1, 2005/05/06 11:02:01-06:00, djm@xxxxxxxxxxxxxxx
Add support for privified mov-from-pmd
Add counters for privified-fc and privified-cpuid
Add optional support for counting addresses of privops
Remove unnecessary PCI stuff
Add optional heartbeat console output
Signed-off by: Dan Magenheimer <dan.magenheimer@xxxxxx>
arch/ia64/privop.c | 82 +++++++++++++++++++++++++++++++++++++++++++---
arch/ia64/vcpu.c | 41 ++++++++++++-----------
arch/ia64/xenmisc.c | 69 --------------------------------------
arch/ia64/xentime.c | 11 ++++++
include/asm-ia64/config.h | 6 ---
include/asm-ia64/vcpu.h | 15 ++++++++
6 files changed, 126 insertions(+), 98 deletions(-)
diff -Nru a/xen/arch/ia64/privop.c b/xen/arch/ia64/privop.c
--- a/xen/arch/ia64/privop.c 2005-05-11 03:03:38 -04:00
+++ b/xen/arch/ia64/privop.c 2005-05-11 03:03:38 -04:00
@@ -417,10 +417,17 @@
UINT64 val;
IA64FAULT fault;
- fault = vcpu_get_pmc(vcpu,vcpu_get_gr(vcpu,inst.M43.r3),&val);
- if (fault == IA64_NO_FAULT)
- return vcpu_set_gr(vcpu, inst.M43.r1, val);
- else return fault;
+ if (inst.M43.r1 > 63) { // privified mov from pmd
+ fault = vcpu_get_pmd(vcpu,vcpu_get_gr(vcpu,inst.M43.r3),&val);
+ if (fault == IA64_NO_FAULT)
+ return vcpu_set_gr(vcpu, inst.M43.r1-64, val);
+ }
+ else {
+ fault = vcpu_get_pmc(vcpu,vcpu_get_gr(vcpu,inst.M43.r3),&val);
+ if (fault == IA64_NO_FAULT)
+ return vcpu_set_gr(vcpu, inst.M43.r1, val);
+ }
+ return fault;
}
unsigned long from_cr_cnt[128] = { 0 };
@@ -531,6 +538,8 @@
unsigned long bsw0;
unsigned long bsw1;
unsigned long cover;
+ unsigned long fc;
+ unsigned long cpuid;
unsigned long Mpriv_cnt[64];
} privcnt = { 0 };
@@ -631,7 +640,11 @@
else x6 = 0x1a;
}
}
- privcnt.Mpriv_cnt[x6]++;
+ if (x6 == 52 && inst.M28.r3 > 63)
+ privcnt.fc++;
+ else if (x6 == 16 && inst.M43.r3 > 63)
+ privcnt.cpuid++;
+ else privcnt.Mpriv_cnt[x6]++;
return (*pfunc)(vcpu,inst);
break;
case B:
@@ -826,6 +839,12 @@
if (privcnt.cover)
s += sprintf(s,"%10d %s [%d%%]\r\n", privcnt.cover,
"cover", (privcnt.cover*100L)/sum);
+ if (privcnt.fc)
+ s += sprintf(s,"%10d %s [%d%%]\r\n", privcnt.fc,
+ "privified-fc", (privcnt.fc*100L)/sum);
+ if (privcnt.cpuid)
+ s += sprintf(s,"%10d %s [%d%%]\r\n", privcnt.cpuid,
+ "privified-getcpuid", (privcnt.cpuid*100L)/sum);
for (i=0; i < 64; i++) if (privcnt.Mpriv_cnt[i]) {
if (!Mpriv_str[i]) s += sprintf(s,"PRIVSTRING NULL!!\r\n");
else s += sprintf(s,"%10d %s [%d%%]\r\n", privcnt.Mpriv_cnt[i],
@@ -864,6 +883,7 @@
privcnt.ssm = 0; privcnt.rsm = 0;
privcnt.rfi = 0; privcnt.bsw0 = 0;
privcnt.bsw1 = 0; privcnt.cover = 0;
+ privcnt.fc = 0; privcnt.cpuid = 0;
for (i=0; i < 64; i++) privcnt.Mpriv_cnt[i] = 0;
for (j=0; j < 128; j++) from_cr_cnt[j] = 0;
for (j=0; j < 128; j++) to_cr_cnt[j] = 0;
@@ -871,12 +891,61 @@
return s - buf;
}
+#ifdef PRIVOP_ADDR_COUNT
+
+extern struct privop_addr_count privop_addr_counter[];
+
+void privop_count_addr(unsigned long iip, int inst)
+{
+ struct privop_addr_count *v = &privop_addr_counter[inst];
+ int i;
+
+ for (i = 0; i < PRIVOP_COUNT_NADDRS; i++) {
+ if (!v->addr[i]) { v->addr[i] = iip; v->count[i]++; return; }
+ else if (v->addr[i] == iip) { v->count[i]++; return; }
+ }
+ v->overflow++;;
+}
+
+int dump_privop_addrs(char *buf)
+{
+ int i,j;
+ char *s = buf;
+ s += sprintf(s,"Privop addresses:\r\n");
+ for (i = 0; i < PRIVOP_COUNT_NINSTS; i++) {
+ struct privop_addr_count *v = &privop_addr_counter[i];
+ s += sprintf(s,"%s:\n",v->instname);
+ for (j = 0; j < PRIVOP_COUNT_NADDRS; j++) {
+ if (!v->addr[j]) break;
+ s += sprintf(s," @%p #%ld\n",v->addr[j],v->count[j]);
+ }
+ if (v->overflow)
+ s += sprintf(s," other #%ld\n",v->overflow);
+ }
+ return s - buf;
+}
+
+void zero_privop_addrs(void)
+{
+ int i,j;
+ for (i = 0; i < PRIVOP_COUNT_NINSTS; i++) {
+ struct privop_addr_count *v = &privop_addr_counter[i];
+ for (j = 0; j < PRIVOP_COUNT_NADDRS; j++)
+ v->addr[j] = v->count[j] = 0;
+ v->overflow = 0;
+ }
+}
+#endif
+
#define TMPBUFLEN 8*1024
int dump_privop_counts_to_user(char __user *ubuf, int len)
{
char buf[TMPBUFLEN];
int n = dump_privop_counts(buf);
+#ifdef PRIVOP_ADDR_COUNT
+ n += dump_privop_addrs(buf + n);
+#endif
if (len < TMPBUFLEN) return -1;
if (__copy_to_user(ubuf,buf,n)) return -1;
return n;
@@ -887,6 +956,9 @@
char buf[TMPBUFLEN];
int n = zero_privop_counts(buf);
+#ifdef PRIVOP_ADDR_COUNT
+ zero_privop_addrs();
+#endif
if (len < TMPBUFLEN) return -1;
if (__copy_to_user(ubuf,buf,n)) return -1;
return n;
diff -Nru a/xen/arch/ia64/vcpu.c b/xen/arch/ia64/vcpu.c
--- a/xen/arch/ia64/vcpu.c 2005-05-11 03:03:38 -04:00
+++ b/xen/arch/ia64/vcpu.c 2005-05-11 03:03:38 -04:00
@@ -37,6 +37,17 @@
#define STATIC
+#ifdef PRIVOP_ADDR_COUNT
+struct privop_addr_count privop_addr_counter[PRIVOP_COUNT_NINSTS] = {
+ { "rsm", { 0 }, { 0 }, 0 },
+ { "ssm", { 0 }, { 0 }, 0 }
+};
+extern void privop_count_addr(unsigned long addr, int inst);
+#define PRIVOP_COUNT_ADDR(regs,inst)
privop_count_addr(regs->cr_iip,inst)
+#else
+#define PRIVOP_COUNT_ADDR(x,y) do {} while (0)
+#endif
+
unsigned long vcpu_verbose = 0;
#define verbose(a...) do {if (vcpu_verbose) printf(a);} while(0)
@@ -77,30 +88,20 @@
IA64FAULT vcpu_set_ar(VCPU *vcpu, UINT64 reg, UINT64 val)
{
if (reg == 44) return (vcpu_set_itc(vcpu,val));
- if (reg == 27) return (IA64_ILLOP_FAULT);
- if (reg > 7) return (IA64_ILLOP_FAULT);
- PSCB(vcpu,krs[reg]) = val;
-#if 0
-// for now, privify kr read's so all kr accesses are privileged
- switch (reg) {
- case 0: asm volatile ("mov ar.k0=%0" :: "r"(val)); break;
- case 1: asm volatile ("mov ar.k1=%0" :: "r"(val)); break;
- case 2: asm volatile ("mov ar.k2=%0" :: "r"(val)); break;
- case 3: asm volatile ("mov ar.k3=%0" :: "r"(val)); break;
- case 4: asm volatile ("mov ar.k4=%0" :: "r"(val)); break;
- case 5: asm volatile ("mov ar.k5=%0" :: "r"(val)); break;
- case 6: asm volatile ("mov ar.k6=%0" :: "r"(val)); break;
- case 7: asm volatile ("mov ar.k7=%0" :: "r"(val)); break;
- case 27: asm volatile ("mov ar.cflg=%0" :: "r"(val)); break;
- }
-#endif
+ else if (reg == 27) return (IA64_ILLOP_FAULT);
+ else if (reg == 24)
+ printf("warning: setting ar.eflg is a no-op; no IA-32 support\n");
+ else if (reg > 7) return (IA64_ILLOP_FAULT);
+ else PSCB(vcpu,krs[reg]) = val;
return IA64_NO_FAULT;
}
IA64FAULT vcpu_get_ar(VCPU *vcpu, UINT64 reg, UINT64 *val)
{
- if (reg > 7) return (IA64_ILLOP_FAULT);
- *val = PSCB(vcpu,krs[reg]);
+ if (reg == 24)
+ printf("warning: getting ar.eflg is a no-op; no IA-32 support\n");
+ else if (reg > 7) return (IA64_ILLOP_FAULT);
+ else *val = PSCB(vcpu,krs[reg]);
return IA64_NO_FAULT;
}
@@ -124,6 +125,7 @@
struct ia64_psr psr, imm, *ipsr;
REGS *regs = vcpu_regs(vcpu);
+ PRIVOP_COUNT_ADDR(regs,_RSM);
// TODO: All of these bits need to be virtualized
// TODO: Only allowed for current vcpu
__asm__ __volatile ("mov %0=psr;;" : "=r"(psr) :: "memory");
@@ -158,6 +160,7 @@
REGS *regs = vcpu_regs(vcpu);
UINT64 mask, enabling_interrupts = 0;
+ PRIVOP_COUNT_ADDR(regs,_SSM);
// TODO: All of these bits need to be virtualized
__asm__ __volatile ("mov %0=psr;;" : "=r"(psr) :: "memory");
imm = *(struct ia64_psr *)&imm24;
diff -Nru a/xen/arch/ia64/xenmisc.c b/xen/arch/ia64/xenmisc.c
--- a/xen/arch/ia64/xenmisc.c 2005-05-11 03:03:38 -04:00
+++ b/xen/arch/ia64/xenmisc.c 2005-05-11 03:03:38 -04:00
@@ -133,80 +133,13 @@
}
///////////////////////////////
-// from arch/x86/pci.c
-///////////////////////////////
-
-int
-pcibios_prep_mwi (struct pci_dev *dev)
-{
- dummy();
-}
-
-///////////////////////////////
-// from arch/x86/pci-irq.c
-///////////////////////////////
-
-void pcibios_enable_irq(struct pci_dev *dev)
-{
- dummy();
-}
-
-///////////////////////////////
-// from arch/ia64/pci-pc.c
-///////////////////////////////
-
-#include <xen/pci.h>
-
-int pcibios_enable_device(struct pci_dev *dev, int mask)
-{
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