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authorIsaku Yamahata <yamahata@valinux.co.jp>2009-03-04 21:06:52 +0900
committerTony Luck <tony.luck@intel.com>2009-03-26 11:02:42 -0700
commit03f511dd02f1431ef652fb97a7f2fe7aef47e025 (patch)
tree87bbff26febaa0eb0e85d1c23886a1cc913af30a /arch/ia64/kernel
parentbf7ab02f620c1020c869fc71a2c855918b6a5375 (diff)
ia64/pv_ops: implement binary patching optimization for native.
implement binary patching optimization for pv_cpu_ops. With this optimization, indirect call for pv_cpu_ops methods can be converted into inline execution or direct call. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/Makefile3
-rw-r--r--arch/ia64/kernel/paravirt.c520
-rw-r--r--arch/ia64/kernel/paravirtentry.S43
-rw-r--r--arch/ia64/kernel/setup.c2
4 files changed, 547 insertions, 21 deletions
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 8dc9df8a87a..dbc19e4d5ef 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -36,7 +36,8 @@ obj-$(CONFIG_PCI_MSI) += msi_ia64.o
mca_recovery-y += mca_drv.o mca_drv_asm.o
obj-$(CONFIG_IA64_MC_ERR_INJECT)+= err_inject.o
-obj-$(CONFIG_PARAVIRT) += paravirt.o paravirtentry.o
+obj-$(CONFIG_PARAVIRT) += paravirt.o paravirtentry.o \
+ paravirt_patch.o
obj-$(CONFIG_IA64_ESI) += esi.o
ifneq ($(CONFIG_IA64_ESI),)
diff --git a/arch/ia64/kernel/paravirt.c b/arch/ia64/kernel/paravirt.c
index 6bc33a6db75..158d52414e9 100644
--- a/arch/ia64/kernel/paravirt.c
+++ b/arch/ia64/kernel/paravirt.c
@@ -46,13 +46,23 @@ struct pv_info pv_info = {
* initialization hooks.
*/
-struct pv_init_ops pv_init_ops;
+static void __init
+ia64_native_patch_branch(unsigned long tag, unsigned long type);
+
+struct pv_init_ops pv_init_ops =
+{
+#ifdef ASM_SUPPORTED
+ .patch_bundle = ia64_native_patch_bundle,
+#endif
+ .patch_branch = ia64_native_patch_branch,
+};
/***************************************************************************
* pv_cpu_ops
* intrinsics hooks.
*/
+#ifndef ASM_SUPPORTED
/* ia64_native_xxx are macros so that we have to make them real functions */
#define DEFINE_VOID_FUNC1(name) \
@@ -274,6 +284,261 @@ ia64_native_setreg_func(int regnum, unsigned long val)
break;
}
}
+#else
+
+#define __DEFINE_FUNC(name, code) \
+ extern const char ia64_native_ ## name ## _direct_start[]; \
+ extern const char ia64_native_ ## name ## _direct_end[]; \
+ asm (".align 32\n" \
+ ".proc ia64_native_" #name "_func\n" \
+ "ia64_native_" #name "_func:\n" \
+ "ia64_native_" #name "_direct_start:\n" \
+ code \
+ "ia64_native_" #name "_direct_end:\n" \
+ "br.cond.sptk.many b6\n" \
+ ".endp ia64_native_" #name "_func\n")
+
+#define DEFINE_VOID_FUNC0(name, code) \
+ extern void \
+ ia64_native_ ## name ## _func(void); \
+ __DEFINE_FUNC(name, code)
+
+#define DEFINE_VOID_FUNC1(name, code) \
+ extern void \
+ ia64_native_ ## name ## _func(unsigned long arg); \
+ __DEFINE_FUNC(name, code)
+
+#define DEFINE_VOID_FUNC2(name, code) \
+ extern void \
+ ia64_native_ ## name ## _func(unsigned long arg0, \
+ unsigned long arg1); \
+ __DEFINE_FUNC(name, code)
+
+#define DEFINE_FUNC0(name, code) \
+ extern unsigned long \
+ ia64_native_ ## name ## _func(void); \
+ __DEFINE_FUNC(name, code)
+
+#define DEFINE_FUNC1(name, type, code) \
+ extern unsigned long \
+ ia64_native_ ## name ## _func(type arg); \
+ __DEFINE_FUNC(name, code)
+
+DEFINE_VOID_FUNC1(fc,
+ "fc r8\n");
+DEFINE_VOID_FUNC1(intrin_local_irq_restore,
+ ";;\n"
+ " cmp.ne p6, p7 = r8, r0\n"
+ ";;\n"
+ "(p6) ssm psr.i\n"
+ "(p7) rsm psr.i\n"
+ ";;\n"
+ "(p6) srlz.d\n");
+
+DEFINE_VOID_FUNC2(ptcga,
+ "ptc.ga r8, r9\n");
+DEFINE_VOID_FUNC2(set_rr,
+ "mov rr[r8] = r9\n");
+
+/* ia64_native_getreg(_IA64_REG_PSR) & IA64_PSR_I */
+DEFINE_FUNC0(get_psr_i,
+ "mov r2 = " __stringify(1 << IA64_PSR_I_BIT) "\n"
+ "mov r8 = psr\n"
+ ";;\n"
+ "and r8 = r2, r8\n");
+
+DEFINE_FUNC1(thash, unsigned long,
+ "thash r8 = r8\n");
+DEFINE_FUNC1(get_cpuid, int,
+ "mov r8 = cpuid[r8]\n");
+DEFINE_FUNC1(get_pmd, int,
+ "mov r8 = pmd[r8]\n");
+DEFINE_FUNC1(get_rr, unsigned long,
+ "mov r8 = rr[r8]\n");
+
+DEFINE_VOID_FUNC0(ssm_i,
+ "ssm psr.i\n");
+DEFINE_VOID_FUNC0(rsm_i,
+ "rsm psr.i\n");
+
+extern void
+ia64_native_set_rr0_to_rr4_func(unsigned long val0, unsigned long val1,
+ unsigned long val2, unsigned long val3,
+ unsigned long val4);
+__DEFINE_FUNC(set_rr0_to_rr4,
+ "mov rr[r0] = r8\n"
+ "movl r2 = 0x2000000000000000\n"
+ ";;\n"
+ "mov rr[r2] = r9\n"
+ "shl r3 = r2, 1\n" /* movl r3 = 0x4000000000000000 */
+ ";;\n"
+ "add r2 = r2, r3\n" /* movl r2 = 0x6000000000000000 */
+ "mov rr[r3] = r10\n"
+ ";;\n"
+ "mov rr[r2] = r11\n"
+ "shl r3 = r3, 1\n" /* movl r3 = 0x8000000000000000 */
+ ";;\n"
+ "mov rr[r3] = r14\n");
+
+extern unsigned long ia64_native_getreg_func(int regnum);
+asm(".global ia64_native_getreg_func\n");
+#define __DEFINE_GET_REG(id, reg) \
+ "mov r2 = " __stringify(_IA64_REG_ ## id) "\n" \
+ ";;\n" \
+ "cmp.eq p6, p0 = r2, r8\n" \
+ ";;\n" \
+ "(p6) mov r8 = " #reg "\n" \
+ "(p6) br.cond.sptk.many b6\n" \
+ ";;\n"
+#define __DEFINE_GET_AR(id, reg) __DEFINE_GET_REG(AR_ ## id, ar.reg)
+#define __DEFINE_GET_CR(id, reg) __DEFINE_GET_REG(CR_ ## id, cr.reg)
+
+__DEFINE_FUNC(getreg,
+ __DEFINE_GET_REG(GP, gp)
+ /*__DEFINE_GET_REG(IP, ip)*/ /* returned ip value shouldn't be constant */
+ __DEFINE_GET_REG(PSR, psr)
+ __DEFINE_GET_REG(TP, tp)
+ __DEFINE_GET_REG(SP, sp)
+
+ __DEFINE_GET_REG(AR_KR0, ar0)
+ __DEFINE_GET_REG(AR_KR1, ar1)
+ __DEFINE_GET_REG(AR_KR2, ar2)
+ __DEFINE_GET_REG(AR_KR3, ar3)
+ __DEFINE_GET_REG(AR_KR4, ar4)
+ __DEFINE_GET_REG(AR_KR5, ar5)
+ __DEFINE_GET_REG(AR_KR6, ar6)
+ __DEFINE_GET_REG(AR_KR7, ar7)
+ __DEFINE_GET_AR(RSC, rsc)
+ __DEFINE_GET_AR(BSP, bsp)
+ __DEFINE_GET_AR(BSPSTORE, bspstore)
+ __DEFINE_GET_AR(RNAT, rnat)
+ __DEFINE_GET_AR(FCR, fcr)
+ __DEFINE_GET_AR(EFLAG, eflag)
+ __DEFINE_GET_AR(CSD, csd)
+ __DEFINE_GET_AR(SSD, ssd)
+ __DEFINE_GET_REG(AR_CFLAG, ar27)
+ __DEFINE_GET_AR(FSR, fsr)
+ __DEFINE_GET_AR(FIR, fir)
+ __DEFINE_GET_AR(FDR, fdr)
+ __DEFINE_GET_AR(CCV, ccv)
+ __DEFINE_GET_AR(UNAT, unat)
+ __DEFINE_GET_AR(FPSR, fpsr)
+ __DEFINE_GET_AR(ITC, itc)
+ __DEFINE_GET_AR(PFS, pfs)
+ __DEFINE_GET_AR(LC, lc)
+ __DEFINE_GET_AR(EC, ec)
+
+ __DEFINE_GET_CR(DCR, dcr)
+ __DEFINE_GET_CR(ITM, itm)
+ __DEFINE_GET_CR(IVA, iva)
+ __DEFINE_GET_CR(PTA, pta)
+ __DEFINE_GET_CR(IPSR, ipsr)
+ __DEFINE_GET_CR(ISR, isr)
+ __DEFINE_GET_CR(IIP, iip)
+ __DEFINE_GET_CR(IFA, ifa)
+ __DEFINE_GET_CR(ITIR, itir)
+ __DEFINE_GET_CR(IIPA, iipa)
+ __DEFINE_GET_CR(IFS, ifs)
+ __DEFINE_GET_CR(IIM, iim)
+ __DEFINE_GET_CR(IHA, iha)
+ __DEFINE_GET_CR(LID, lid)
+ __DEFINE_GET_CR(IVR, ivr)
+ __DEFINE_GET_CR(TPR, tpr)
+ __DEFINE_GET_CR(EOI, eoi)
+ __DEFINE_GET_CR(IRR0, irr0)
+ __DEFINE_GET_CR(IRR1, irr1)
+ __DEFINE_GET_CR(IRR2, irr2)
+ __DEFINE_GET_CR(IRR3, irr3)
+ __DEFINE_GET_CR(ITV, itv)
+ __DEFINE_GET_CR(PMV, pmv)
+ __DEFINE_GET_CR(CMCV, cmcv)
+ __DEFINE_GET_CR(LRR0, lrr0)
+ __DEFINE_GET_CR(LRR1, lrr1)
+
+ "mov r8 = -1\n" /* unsupported case */
+ );
+
+extern void ia64_native_setreg_func(int regnum, unsigned long val);
+asm(".global ia64_native_setreg_func\n");
+#define __DEFINE_SET_REG(id, reg) \
+ "mov r2 = " __stringify(_IA64_REG_ ## id) "\n" \
+ ";;\n" \
+ "cmp.eq p6, p0 = r2, r9\n" \
+ ";;\n" \
+ "(p6) mov " #reg " = r8\n" \
+ "(p6) br.cond.sptk.many b6\n" \
+ ";;\n"
+#define __DEFINE_SET_AR(id, reg) __DEFINE_SET_REG(AR_ ## id, ar.reg)
+#define __DEFINE_SET_CR(id, reg) __DEFINE_SET_REG(CR_ ## id, cr.reg)
+__DEFINE_FUNC(setreg,
+ "mov r2 = " __stringify(_IA64_REG_PSR_L) "\n"
+ ";;\n"
+ "cmp.eq p6, p0 = r2, r9\n"
+ ";;\n"
+ "(p6) mov psr.l = r8\n"
+#ifdef HAVE_SERIALIZE_DIRECTIVE
+ ".serialize.data\n"
+#endif
+ "(p6) br.cond.sptk.many b6\n"
+ __DEFINE_SET_REG(GP, gp)
+ __DEFINE_SET_REG(SP, sp)
+
+ __DEFINE_SET_REG(AR_KR0, ar0)
+ __DEFINE_SET_REG(AR_KR1, ar1)
+ __DEFINE_SET_REG(AR_KR2, ar2)
+ __DEFINE_SET_REG(AR_KR3, ar3)
+ __DEFINE_SET_REG(AR_KR4, ar4)
+ __DEFINE_SET_REG(AR_KR5, ar5)
+ __DEFINE_SET_REG(AR_KR6, ar6)
+ __DEFINE_SET_REG(AR_KR7, ar7)
+ __DEFINE_SET_AR(RSC, rsc)
+ __DEFINE_SET_AR(BSP, bsp)
+ __DEFINE_SET_AR(BSPSTORE, bspstore)
+ __DEFINE_SET_AR(RNAT, rnat)
+ __DEFINE_SET_AR(FCR, fcr)
+ __DEFINE_SET_AR(EFLAG, eflag)
+ __DEFINE_SET_AR(CSD, csd)
+ __DEFINE_SET_AR(SSD, ssd)
+ __DEFINE_SET_REG(AR_CFLAG, ar27)
+ __DEFINE_SET_AR(FSR, fsr)
+ __DEFINE_SET_AR(FIR, fir)
+ __DEFINE_SET_AR(FDR, fdr)
+ __DEFINE_SET_AR(CCV, ccv)
+ __DEFINE_SET_AR(UNAT, unat)
+ __DEFINE_SET_AR(FPSR, fpsr)
+ __DEFINE_SET_AR(ITC, itc)
+ __DEFINE_SET_AR(PFS, pfs)
+ __DEFINE_SET_AR(LC, lc)
+ __DEFINE_SET_AR(EC, ec)
+
+ __DEFINE_SET_CR(DCR, dcr)
+ __DEFINE_SET_CR(ITM, itm)
+ __DEFINE_SET_CR(IVA, iva)
+ __DEFINE_SET_CR(PTA, pta)
+ __DEFINE_SET_CR(IPSR, ipsr)
+ __DEFINE_SET_CR(ISR, isr)
+ __DEFINE_SET_CR(IIP, iip)
+ __DEFINE_SET_CR(IFA, ifa)
+ __DEFINE_SET_CR(ITIR, itir)
+ __DEFINE_SET_CR(IIPA, iipa)
+ __DEFINE_SET_CR(IFS, ifs)
+ __DEFINE_SET_CR(IIM, iim)
+ __DEFINE_SET_CR(IHA, iha)
+ __DEFINE_SET_CR(LID, lid)
+ __DEFINE_SET_CR(IVR, ivr)
+ __DEFINE_SET_CR(TPR, tpr)
+ __DEFINE_SET_CR(EOI, eoi)
+ __DEFINE_SET_CR(IRR0, irr0)
+ __DEFINE_SET_CR(IRR1, irr1)
+ __DEFINE_SET_CR(IRR2, irr2)
+ __DEFINE_SET_CR(IRR3, irr3)
+ __DEFINE_SET_CR(ITV, itv)
+ __DEFINE_SET_CR(PMV, pmv)
+ __DEFINE_SET_CR(CMCV, cmcv)
+ __DEFINE_SET_CR(LRR0, lrr0)
+ __DEFINE_SET_CR(LRR1, lrr1)
+ );
+#endif
struct pv_cpu_ops pv_cpu_ops = {
.fc = ia64_native_fc_func,
@@ -368,3 +633,256 @@ struct pv_time_ops pv_time_ops = {
.do_steal_accounting = ia64_native_do_steal_accounting,
.sched_clock = ia64_native_sched_clock,
};
+
+/***************************************************************************
+ * binary pacthing
+ * pv_init_ops.patch_bundle
+ */
+
+#ifdef ASM_SUPPORTED
+#define IA64_NATIVE_PATCH_DEFINE_GET_REG(name, reg) \
+ __DEFINE_FUNC(get_ ## name, \
+ ";;\n" \
+ "mov r8 = " #reg "\n" \
+ ";;\n")
+
+#define IA64_NATIVE_PATCH_DEFINE_SET_REG(name, reg) \
+ __DEFINE_FUNC(set_ ## name, \
+ ";;\n" \
+ "mov " #reg " = r8\n" \
+ ";;\n")
+
+#define IA64_NATIVE_PATCH_DEFINE_REG(name, reg) \
+ IA64_NATIVE_PATCH_DEFINE_GET_REG(name, reg); \
+ IA64_NATIVE_PATCH_DEFINE_SET_REG(name, reg) \
+
+#define IA64_NATIVE_PATCH_DEFINE_AR(name, reg) \
+ IA64_NATIVE_PATCH_DEFINE_REG(ar_ ## name, ar.reg)
+
+#define IA64_NATIVE_PATCH_DEFINE_CR(name, reg) \
+ IA64_NATIVE_PATCH_DEFINE_REG(cr_ ## name, cr.reg)
+
+
+IA64_NATIVE_PATCH_DEFINE_GET_REG(psr, psr);
+IA64_NATIVE_PATCH_DEFINE_GET_REG(tp, tp);
+
+/* IA64_NATIVE_PATCH_DEFINE_SET_REG(psr_l, psr.l); */
+__DEFINE_FUNC(set_psr_l,
+ ";;\n"
+ "mov psr.l = r8\n"
+#ifdef HAVE_SERIALIZE_DIRECTIVE
+ ".serialize.data\n"
+#endif
+ ";;\n");
+
+IA64_NATIVE_PATCH_DEFINE_REG(gp, gp);
+IA64_NATIVE_PATCH_DEFINE_REG(sp, sp);
+
+IA64_NATIVE_PATCH_DEFINE_REG(kr0, ar0);
+IA64_NATIVE_PATCH_DEFINE_REG(kr1, ar1);
+IA64_NATIVE_PATCH_DEFINE_REG(kr2, ar2);
+IA64_NATIVE_PATCH_DEFINE_REG(kr3, ar3);
+IA64_NATIVE_PATCH_DEFINE_REG(kr4, ar4);
+IA64_NATIVE_PATCH_DEFINE_REG(kr5, ar5);
+IA64_NATIVE_PATCH_DEFINE_REG(kr6, ar6);
+IA64_NATIVE_PATCH_DEFINE_REG(kr7, ar7);
+
+IA64_NATIVE_PATCH_DEFINE_AR(rsc, rsc);
+IA64_NATIVE_PATCH_DEFINE_AR(bsp, bsp);
+IA64_NATIVE_PATCH_DEFINE_AR(bspstore, bspstore);
+IA64_NATIVE_PATCH_DEFINE_AR(rnat, rnat);
+IA64_NATIVE_PATCH_DEFINE_AR(fcr, fcr);
+IA64_NATIVE_PATCH_DEFINE_AR(eflag, eflag);
+IA64_NATIVE_PATCH_DEFINE_AR(csd, csd);
+IA64_NATIVE_PATCH_DEFINE_AR(ssd, ssd);
+IA64_NATIVE_PATCH_DEFINE_REG(ar27, ar27);
+IA64_NATIVE_PATCH_DEFINE_AR(fsr, fsr);
+IA64_NATIVE_PATCH_DEFINE_AR(fir, fir);
+IA64_NATIVE_PATCH_DEFINE_AR(fdr, fdr);
+IA64_NATIVE_PATCH_DEFINE_AR(ccv, ccv);
+IA64_NATIVE_PATCH_DEFINE_AR(unat, unat);
+IA64_NATIVE_PATCH_DEFINE_AR(fpsr, fpsr);
+IA64_NATIVE_PATCH_DEFINE_AR(itc, itc);
+IA64_NATIVE_PATCH_DEFINE_AR(pfs, pfs);
+IA64_NATIVE_PATCH_DEFINE_AR(lc, lc);
+IA64_NATIVE_PATCH_DEFINE_AR(ec, ec);
+
+IA64_NATIVE_PATCH_DEFINE_CR(dcr, dcr);
+IA64_NATIVE_PATCH_DEFINE_CR(itm, itm);
+IA64_NATIVE_PATCH_DEFINE_CR(iva, iva);
+IA64_NATIVE_PATCH_DEFINE_CR(pta, pta);
+IA64_NATIVE_PATCH_DEFINE_CR(ipsr, ipsr);
+IA64_NATIVE_PATCH_DEFINE_CR(isr, isr);
+IA64_NATIVE_PATCH_DEFINE_CR(iip, iip);
+IA64_NATIVE_PATCH_DEFINE_CR(ifa, ifa);
+IA64_NATIVE_PATCH_DEFINE_CR(itir, itir);
+IA64_NATIVE_PATCH_DEFINE_CR(iipa, iipa);
+IA64_NATIVE_PATCH_DEFINE_CR(ifs, ifs);
+IA64_NATIVE_PATCH_DEFINE_CR(iim, iim);
+IA64_NATIVE_PATCH_DEFINE_CR(iha, iha);
+IA64_NATIVE_PATCH_DEFINE_CR(lid, lid);
+IA64_NATIVE_PATCH_DEFINE_CR(ivr, ivr);
+IA64_NATIVE_PATCH_DEFINE_CR(tpr, tpr);
+IA64_NATIVE_PATCH_DEFINE_CR(eoi, eoi);
+IA64_NATIVE_PATCH_DEFINE_CR(irr0, irr0);
+IA64_NATIVE_PATCH_DEFINE_CR(irr1, irr1);
+IA64_NATIVE_PATCH_DEFINE_CR(irr2, irr2);
+IA64_NATIVE_PATCH_DEFINE_CR(irr3, irr3);
+IA64_NATIVE_PATCH_DEFINE_CR(itv, itv);
+IA64_NATIVE_PATCH_DEFINE_CR(pmv, pmv);
+IA64_NATIVE_PATCH_DEFINE_CR(cmcv, cmcv);
+IA64_NATIVE_PATCH_DEFINE_CR(lrr0, lrr0);
+IA64_NATIVE_PATCH_DEFINE_CR(lrr1, lrr1);
+
+static const struct paravirt_patch_bundle_elem ia64_native_patch_bundle_elems[]
+__initdata_or_module =
+{
+#define IA64_NATIVE_PATCH_BUNDLE_ELEM(name, type) \
+ { \
+ (void*)ia64_native_ ## name ## _direct_start, \
+ (void*)ia64_native_ ## name ## _direct_end, \
+ PARAVIRT_PATCH_TYPE_ ## type, \
+ }
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(fc, FC),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(thash, THASH),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(get_cpuid, GET_CPUID),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(get_pmd, GET_PMD),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(ptcga, PTCGA),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(get_rr, GET_RR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(set_rr, SET_RR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(set_rr0_to_rr4, SET_RR0_TO_RR4),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(ssm_i, SSM_I),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(rsm_i, RSM_I),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(get_psr_i, GET_PSR_I),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM(intrin_local_irq_restore,
+ INTRIN_LOCAL_IRQ_RESTORE),
+
+#define IA64_NATIVE_PATCH_BUNDLE_ELEM_GETREG(name, reg) \
+ { \
+ (void*)ia64_native_get_ ## name ## _direct_start, \
+ (void*)ia64_native_get_ ## name ## _direct_end, \
+ PARAVIRT_PATCH_TYPE_GETREG + _IA64_REG_ ## reg, \
+ }
+
+#define IA64_NATIVE_PATCH_BUNDLE_ELEM_SETREG(name, reg) \
+ { \
+ (void*)ia64_native_set_ ## name ## _direct_start, \
+ (void*)ia64_native_set_ ## name ## _direct_end, \
+ PARAVIRT_PATCH_TYPE_SETREG + _IA64_REG_ ## reg, \
+ }
+
+#define IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(name, reg) \
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_GETREG(name, reg), \
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_SETREG(name, reg) \
+
+#define IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(name, reg) \
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(ar_ ## name, AR_ ## reg)
+
+#define IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(name, reg) \
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(cr_ ## name, CR_ ## reg)
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_GETREG(psr, PSR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_GETREG(tp, TP),
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_SETREG(psr_l, PSR_L),
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(gp, GP),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(sp, SP),
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr0, AR_KR0),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr1, AR_KR1),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr2, AR_KR2),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr3, AR_KR3),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr4, AR_KR4),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr5, AR_KR5),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr6, AR_KR6),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(kr7, AR_KR7),
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(rsc, RSC),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(bsp, BSP),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(bspstore, BSPSTORE),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(rnat, RNAT),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(fcr, FCR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(eflag, EFLAG),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(csd, CSD),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(ssd, SSD),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_REG(ar27, AR_CFLAG),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(fsr, FSR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(fir, FIR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(fdr, FDR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(ccv, CCV),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(unat, UNAT),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(fpsr, FPSR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(itc, ITC),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(pfs, PFS),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(lc, LC),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_AR(ec, EC),
+
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(dcr, DCR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(itm, ITM),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(iva, IVA),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(pta, PTA),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(ipsr, IPSR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(isr, ISR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(iip, IIP),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(ifa, IFA),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(itir, ITIR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(iipa, IIPA),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(ifs, IFS),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(iim, IIM),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(iha, IHA),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(lid, LID),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(ivr, IVR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(tpr, TPR),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(eoi, EOI),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(irr0, IRR0),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(irr1, IRR1),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(irr2, IRR2),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(irr3, IRR3),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(itv, ITV),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(pmv, PMV),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(cmcv, CMCV),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(lrr0, LRR0),
+ IA64_NATIVE_PATCH_BUNDLE_ELEM_CR(lrr1, LRR1),
+};
+
+unsigned long __init_or_module
+ia64_native_patch_bundle(void *sbundle, void *ebundle, unsigned long type)
+{
+ const unsigned long nelems = sizeof(ia64_native_patch_bundle_elems) /
+ sizeof(ia64_native_patch_bundle_elems[0]);
+
+ return __paravirt_patch_apply_bundle(sbundle, ebundle, type,
+ ia64_native_patch_bundle_elems,
+ nelems, NULL);
+}
+#endif /* ASM_SUPPOTED */
+
+extern const char ia64_native_switch_to[];
+extern const char ia64_native_leave_syscall[];
+extern const char ia64_native_work_processed_syscall[];
+extern const char ia64_native_leave_kernel[];
+
+const struct paravirt_patch_branch_target ia64_native_branch_target[]
+__initconst = {
+#define PARAVIRT_BR_TARGET(name, type) \
+ { \
+ ia64_native_ ## name, \
+ PARAVIRT_PATCH_TYPE_BR_ ## type, \
+ }
+ PARAVIRT_BR_TARGET(switch_to, SWITCH_TO),
+ PARAVIRT_BR_TARGET(leave_syscall, LEAVE_SYSCALL),
+ PARAVIRT_BR_TARGET(work_processed_syscall, WORK_PROCESSED_SYSCALL),
+ PARAVIRT_BR_TARGET(leave_kernel, LEAVE_KERNEL),
+};
+
+static void __init
+ia64_native_patch_branch(unsigned long tag, unsigned long type)
+{
+ const unsigned long nelem =
+ sizeof(ia64_native_branch_target) /
+ sizeof(ia64_native_branch_target[0]);
+ __paravirt_patch_apply_branch(tag, type,
+ ia64_native_branch_target, nelem);
+}
diff --git a/arch/ia64/kernel/paravirtentry.S b/arch/ia64/kernel/paravirtentry.S
index 80c0d365cbc..6158560d7f1 100644
--- a/arch/ia64/kernel/paravirtentry.S
+++ b/arch/ia64/kernel/paravirtentry.S
@@ -20,8 +20,11 @@
*
*/
+#include <linux/init.h>
#include <asm/asmmacro.h>
#include <asm/asm-offsets.h>
+#include <asm/paravirt_privop.h>
+#include <asm/paravirt_patch.h>
#include "entry.h"
#define DATA8(sym, init_value) \
@@ -32,32 +35,34 @@
data8 init_value ; \
.popsection
-#define BRANCH(targ, reg, breg) \
- movl reg=targ ; \
- ;; \
- ld8 reg=[reg] ; \
- ;; \
- mov breg=reg ; \
+#define BRANCH(targ, reg, breg, type) \
+ PARAVIRT_PATCH_SITE_BR(PARAVIRT_PATCH_TYPE_BR_ ## type) ; \
+ ;; \
+ movl reg=targ ; \
+ ;; \
+ ld8 reg=[reg] ; \
+ ;; \
+ mov breg=reg ; \
br.cond.sptk.many breg
-#define BRANCH_PROC(sym, reg, breg) \
- DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
- GLOBAL_ENTRY(paravirt_ ## sym) ; \
- BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \
+#define BRANCH_PROC(sym, reg, breg, type) \
+ DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
+ GLOBAL_ENTRY(paravirt_ ## sym) ; \
+ BRANCH(paravirt_ ## sym ## _targ, reg, breg, type) ; \
END(paravirt_ ## sym)
-#define BRANCH_PROC_UNWINFO(sym, reg, breg) \
- DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
- GLOBAL_ENTRY(paravirt_ ## sym) ; \
- PT_REGS_UNWIND_INFO(0) ; \
- BRANCH(paravirt_ ## sym ## _targ, reg, breg) ; \
+#define BRANCH_PROC_UNWINFO(sym, reg, breg, type) \
+ DATA8(paravirt_ ## sym ## _targ, ia64_native_ ## sym) ; \
+ GLOBAL_ENTRY(paravirt_ ## sym) ; \
+ PT_REGS_UNWIND_INFO(0) ; \
+ BRANCH(paravirt_ ## sym ## _targ, reg, breg, type) ; \
END(paravirt_ ## sym)
-BRANCH_PROC(switch_to, r22, b7)
-BRANCH_PROC_UNWINFO(leave_syscall, r22, b7)
-BRANCH_PROC(work_processed_syscall, r2, b7)
-BRANCH_PROC_UNWINFO(leave_kernel, r22, b7)
+BRANCH_PROC(switch_to, r22, b7, SWITCH_TO)
+BRANCH_PROC_UNWINFO(leave_syscall, r22, b7, LEAVE_SYSCALL)
+BRANCH_PROC(work_processed_syscall, r2, b7, WORK_PROCESSED_SYSCALL)
+BRANCH_PROC_UNWINFO(leave_kernel, r22, b7, LEAVE_KERNEL)
#ifdef CONFIG_MODULES
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 865af27c773..4ed3e1c117e 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -52,6 +52,7 @@
#include <asm/meminit.h>
#include <asm/page.h>
#include <asm/paravirt.h>
+#include <asm/paravirt_patch.h>
#include <asm/patch.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
@@ -537,6 +538,7 @@ setup_arch (char **cmdline_p)
paravirt_arch_setup_early();
ia64_patch_vtop((u64) __start___vtop_patchlist, (u64) __end___vtop_patchlist);
+ paravirt_patch_apply();
*cmdline_p = __va(ia64_boot_param->command_line);
strlcpy(boot_command_line, *cmdline_p, COMMAND_LINE_SIZE);