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-rw-r--r--arch/x86/ia32/ia32entry.S2
-rw-r--r--arch/x86/include/asm/amd_iommu_types.h3
-rw-r--r--arch/x86/include/asm/lguest_hcall.h29
-rw-r--r--arch/x86/kernel/amd_iommu.c20
-rw-r--r--arch/x86/kernel/amd_iommu_init.c48
-rw-r--r--arch/x86/kernel/aperture_64.c15
-rw-r--r--arch/x86/kernel/crash.c6
-rw-r--r--arch/x86/kernel/dumpstack.h8
-rw-r--r--arch/x86/kernel/pci-gart_64.c3
-rw-r--r--arch/x86/lguest/boot.c61
-rw-r--r--arch/x86/lguest/i386_head.S2
11 files changed, 128 insertions, 69 deletions
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index 59b4556a5b92..e790bc1fbfa3 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -626,7 +626,7 @@ ia32_sys_call_table:
.quad stub32_sigreturn
.quad stub32_clone /* 120 */
.quad sys_setdomainname
- .quad sys_uname
+ .quad sys_newuname
.quad sys_modify_ldt
.quad compat_sys_adjtimex
.quad sys32_mprotect /* 125 */
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index ba19ad4c47d0..86a0ff0aeac7 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -21,6 +21,7 @@
#define _ASM_X86_AMD_IOMMU_TYPES_H
#include <linux/types.h>
+#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/spinlock.h>
@@ -140,6 +141,7 @@
/* constants to configure the command buffer */
#define CMD_BUFFER_SIZE 8192
+#define CMD_BUFFER_UNINITIALIZED 1
#define CMD_BUFFER_ENTRIES 512
#define MMIO_CMD_SIZE_SHIFT 56
#define MMIO_CMD_SIZE_512 (0x9ULL << MMIO_CMD_SIZE_SHIFT)
@@ -237,6 +239,7 @@ struct protection_domain {
struct list_head list; /* for list of all protection domains */
struct list_head dev_list; /* List of all devices in this domain */
spinlock_t lock; /* mostly used to lock the page table*/
+ struct mutex api_lock; /* protect page tables in the iommu-api path */
u16 id; /* the domain id written to the device table */
int mode; /* paging mode (0-6 levels) */
u64 *pt_root; /* page table root pointer */
diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h
index ba0eed8aa1a6..b60f2924c413 100644
--- a/arch/x86/include/asm/lguest_hcall.h
+++ b/arch/x86/include/asm/lguest_hcall.h
@@ -28,22 +28,39 @@
#ifndef __ASSEMBLY__
#include <asm/hw_irq.h>
-#include <asm/kvm_para.h>
/*G:030
* But first, how does our Guest contact the Host to ask for privileged
* operations? There are two ways: the direct way is to make a "hypercall",
* to make requests of the Host Itself.
*
- * We use the KVM hypercall mechanism, though completely different hypercall
- * numbers. Seventeen hypercalls are available: the hypercall number is put in
- * the %eax register, and the arguments (when required) are placed in %ebx,
- * %ecx, %edx and %esi. If a return value makes sense, it's returned in %eax.
+ * Our hypercall mechanism uses the highest unused trap code (traps 32 and
+ * above are used by real hardware interrupts). Seventeen hypercalls are
+ * available: the hypercall number is put in the %eax register, and the
+ * arguments (when required) are placed in %ebx, %ecx, %edx and %esi.
+ * If a return value makes sense, it's returned in %eax.
*
* Grossly invalid calls result in Sudden Death at the hands of the vengeful
* Host, rather than returning failure. This reflects Winston Churchill's
* definition of a gentleman: "someone who is only rude intentionally".
-:*/
+ */
+static inline unsigned long
+hcall(unsigned long call,
+ unsigned long arg1, unsigned long arg2, unsigned long arg3,
+ unsigned long arg4)
+{
+ /* "int" is the Intel instruction to trigger a trap. */
+ asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
+ /* The call in %eax (aka "a") might be overwritten */
+ : "=a"(call)
+ /* The arguments are in %eax, %ebx, %ecx, %edx & %esi */
+ : "a"(call), "b"(arg1), "c"(arg2), "d"(arg3), "S"(arg4)
+ /* "memory" means this might write somewhere in memory.
+ * This isn't true for all calls, but it's safe to tell
+ * gcc that it might happen so it doesn't get clever. */
+ : "memory");
+ return call;
+}
/* Can't use our min() macro here: needs to be a constant */
#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index f3dadb571d9b..f854d89b7edf 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -118,7 +118,7 @@ static bool check_device(struct device *dev)
return false;
/* No device or no PCI device */
- if (!dev || dev->bus != &pci_bus_type)
+ if (dev->bus != &pci_bus_type)
return false;
devid = get_device_id(dev);
@@ -392,6 +392,7 @@ static int __iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd)
u32 tail, head;
u8 *target;
+ WARN_ON(iommu->cmd_buf_size & CMD_BUFFER_UNINITIALIZED);
tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET);
target = iommu->cmd_buf + tail;
memcpy_toio(target, cmd, sizeof(*cmd));
@@ -2186,7 +2187,7 @@ static void prealloc_protection_domains(void)
struct dma_ops_domain *dma_dom;
u16 devid;
- while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+ for_each_pci_dev(dev) {
/* Do we handle this device? */
if (!check_device(&dev->dev))
@@ -2298,7 +2299,7 @@ static void cleanup_domain(struct protection_domain *domain)
list_for_each_entry_safe(dev_data, next, &domain->dev_list, list) {
struct device *dev = dev_data->dev;
- do_detach(dev);
+ __detach_device(dev);
atomic_set(&dev_data->bind, 0);
}
@@ -2327,6 +2328,7 @@ static struct protection_domain *protection_domain_alloc(void)
return NULL;
spin_lock_init(&domain->lock);
+ mutex_init(&domain->api_lock);
domain->id = domain_id_alloc();
if (!domain->id)
goto out_err;
@@ -2379,9 +2381,7 @@ static void amd_iommu_domain_destroy(struct iommu_domain *dom)
free_pagetable(domain);
- domain_id_free(domain->id);
-
- kfree(domain);
+ protection_domain_free(domain);
dom->priv = NULL;
}
@@ -2456,6 +2456,8 @@ static int amd_iommu_map_range(struct iommu_domain *dom,
iova &= PAGE_MASK;
paddr &= PAGE_MASK;
+ mutex_lock(&domain->api_lock);
+
for (i = 0; i < npages; ++i) {
ret = iommu_map_page(domain, iova, paddr, prot, PM_MAP_4k);
if (ret)
@@ -2465,6 +2467,8 @@ static int amd_iommu_map_range(struct iommu_domain *dom,
paddr += PAGE_SIZE;
}
+ mutex_unlock(&domain->api_lock);
+
return 0;
}
@@ -2477,12 +2481,16 @@ static void amd_iommu_unmap_range(struct iommu_domain *dom,
iova &= PAGE_MASK;
+ mutex_lock(&domain->api_lock);
+
for (i = 0; i < npages; ++i) {
iommu_unmap_page(domain, iova, PM_MAP_4k);
iova += PAGE_SIZE;
}
iommu_flush_tlb_pde(domain);
+
+ mutex_unlock(&domain->api_lock);
}
static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,
diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c
index 42f5350b908f..6360abf993d4 100644
--- a/arch/x86/kernel/amd_iommu_init.c
+++ b/arch/x86/kernel/amd_iommu_init.c
@@ -138,9 +138,9 @@ int amd_iommus_present;
bool amd_iommu_np_cache __read_mostly;
/*
- * Set to true if ACPI table parsing and hardware intialization went properly
+ * The ACPI table parsing functions set this variable on an error
*/
-static bool amd_iommu_initialized;
+static int __initdata amd_iommu_init_err;
/*
* List of protection domains - used during resume
@@ -391,9 +391,11 @@ static int __init find_last_devid_acpi(struct acpi_table_header *table)
*/
for (i = 0; i < table->length; ++i)
checksum += p[i];
- if (checksum != 0)
+ if (checksum != 0) {
/* ACPI table corrupt */
- return -ENODEV;
+ amd_iommu_init_err = -ENODEV;
+ return 0;
+ }
p += IVRS_HEADER_LENGTH;
@@ -436,7 +438,7 @@ static u8 * __init alloc_command_buffer(struct amd_iommu *iommu)
if (cmd_buf == NULL)
return NULL;
- iommu->cmd_buf_size = CMD_BUFFER_SIZE;
+ iommu->cmd_buf_size = CMD_BUFFER_SIZE | CMD_BUFFER_UNINITIALIZED;
return cmd_buf;
}
@@ -472,12 +474,13 @@ static void iommu_enable_command_buffer(struct amd_iommu *iommu)
&entry, sizeof(entry));
amd_iommu_reset_cmd_buffer(iommu);
+ iommu->cmd_buf_size &= ~(CMD_BUFFER_UNINITIALIZED);
}
static void __init free_command_buffer(struct amd_iommu *iommu)
{
free_pages((unsigned long)iommu->cmd_buf,
- get_order(iommu->cmd_buf_size));
+ get_order(iommu->cmd_buf_size & ~(CMD_BUFFER_UNINITIALIZED)));
}
/* allocates the memory where the IOMMU will log its events to */
@@ -920,11 +923,16 @@ static int __init init_iommu_all(struct acpi_table_header *table)
h->mmio_phys);
iommu = kzalloc(sizeof(struct amd_iommu), GFP_KERNEL);
- if (iommu == NULL)
- return -ENOMEM;
+ if (iommu == NULL) {
+ amd_iommu_init_err = -ENOMEM;
+ return 0;
+ }
+
ret = init_iommu_one(iommu, h);
- if (ret)
- return ret;
+ if (ret) {
+ amd_iommu_init_err = ret;
+ return 0;
+ }
break;
default:
break;
@@ -934,8 +942,6 @@ static int __init init_iommu_all(struct acpi_table_header *table)
}
WARN_ON(p != end);
- amd_iommu_initialized = true;
-
return 0;
}
@@ -1211,6 +1217,10 @@ static int __init amd_iommu_init(void)
if (acpi_table_parse("IVRS", find_last_devid_acpi) != 0)
return -ENODEV;
+ ret = amd_iommu_init_err;
+ if (ret)
+ goto out;
+
dev_table_size = tbl_size(DEV_TABLE_ENTRY_SIZE);
alias_table_size = tbl_size(ALIAS_TABLE_ENTRY_SIZE);
rlookup_table_size = tbl_size(RLOOKUP_TABLE_ENTRY_SIZE);
@@ -1270,12 +1280,19 @@ static int __init amd_iommu_init(void)
if (acpi_table_parse("IVRS", init_iommu_all) != 0)
goto free;
- if (!amd_iommu_initialized)
+ if (amd_iommu_init_err) {
+ ret = amd_iommu_init_err;
goto free;
+ }
if (acpi_table_parse("IVRS", init_memory_definitions) != 0)
goto free;
+ if (amd_iommu_init_err) {
+ ret = amd_iommu_init_err;
+ goto free;
+ }
+
ret = sysdev_class_register(&amd_iommu_sysdev_class);
if (ret)
goto free;
@@ -1288,6 +1305,8 @@ static int __init amd_iommu_init(void)
if (ret)
goto free;
+ enable_iommus();
+
if (iommu_pass_through)
ret = amd_iommu_init_passthrough();
else
@@ -1300,8 +1319,6 @@ static int __init amd_iommu_init(void)
amd_iommu_init_notifier();
- enable_iommus();
-
if (iommu_pass_through)
goto out;
@@ -1315,6 +1332,7 @@ out:
return ret;
free:
+ disable_iommus();
amd_iommu_uninit_devices();
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index 3704997e8b25..b5d8b0bcf235 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -393,6 +393,7 @@ void __init gart_iommu_hole_init(void)
for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
int bus;
int dev_base, dev_limit;
+ u32 ctl;
bus = bus_dev_ranges[i].bus;
dev_base = bus_dev_ranges[i].dev_base;
@@ -406,7 +407,19 @@ void __init gart_iommu_hole_init(void)
gart_iommu_aperture = 1;
x86_init.iommu.iommu_init = gart_iommu_init;
- aper_order = (read_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL) >> 1) & 7;
+ ctl = read_pci_config(bus, slot, 3,
+ AMD64_GARTAPERTURECTL);
+
+ /*
+ * Before we do anything else disable the GART. It may
+ * still be enabled if we boot into a crash-kernel here.
+ * Reconfiguring the GART while it is enabled could have
+ * unknown side-effects.
+ */
+ ctl &= ~GARTEN;
+ write_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL, ctl);
+
+ aper_order = (ctl >> 1) & 7;
aper_size = (32 * 1024 * 1024) << aper_order;
aper_base = read_pci_config(bus, slot, 3, AMD64_GARTAPERTUREBASE) & 0x7fff;
aper_base <<= 25;
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index a4849c10a77e..ebd4c51d096a 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -27,7 +27,6 @@
#include <asm/cpu.h>
#include <asm/reboot.h>
#include <asm/virtext.h>
-#include <asm/x86_init.h>
#if defined(CONFIG_SMP) && defined(CONFIG_X86_LOCAL_APIC)
@@ -103,10 +102,5 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
#ifdef CONFIG_HPET_TIMER
hpet_disable();
#endif
-
-#ifdef CONFIG_X86_64
- x86_platform.iommu_shutdown();
-#endif
-
crash_save_cpu(regs, safe_smp_processor_id());
}
diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h
index e39e77168a37..e1a93be4fd44 100644
--- a/arch/x86/kernel/dumpstack.h
+++ b/arch/x86/kernel/dumpstack.h
@@ -14,6 +14,8 @@
#define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :)
#endif
+#include <linux/uaccess.h>
+
extern void
show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
unsigned long *stack, unsigned long bp, char *log_lvl);
@@ -42,8 +44,10 @@ static inline unsigned long rewind_frame_pointer(int n)
get_bp(frame);
#ifdef CONFIG_FRAME_POINTER
- while (n--)
- frame = frame->next_frame;
+ while (n--) {
+ if (probe_kernel_address(&frame->next_frame, frame))
+ break;
+ }
#endif
return (unsigned long)frame;
diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
index 68cd24f9deae..0f7f130caa67 100644
--- a/arch/x86/kernel/pci-gart_64.c
+++ b/arch/x86/kernel/pci-gart_64.c
@@ -565,6 +565,9 @@ static void enable_gart_translations(void)
enable_gart_translation(dev, __pa(agp_gatt_table));
}
+
+ /* Flush the GART-TLB to remove stale entries */
+ k8_flush_garts();
}
/*
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 7e59dc1d3fc2..2bdf628066bd 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -115,7 +115,7 @@ static void async_hcall(unsigned long call, unsigned long arg1,
local_irq_save(flags);
if (lguest_data.hcall_status[next_call] != 0xFF) {
/* Table full, so do normal hcall which will flush table. */
- kvm_hypercall4(call, arg1, arg2, arg3, arg4);
+ hcall(call, arg1, arg2, arg3, arg4);
} else {
lguest_data.hcalls[next_call].arg0 = call;
lguest_data.hcalls[next_call].arg1 = arg1;
@@ -145,46 +145,45 @@ static void async_hcall(unsigned long call, unsigned long arg1,
* So, when we're in lazy mode, we call async_hcall() to store the call for
* future processing:
*/
-static void lazy_hcall1(unsigned long call,
- unsigned long arg1)
+static void lazy_hcall1(unsigned long call, unsigned long arg1)
{
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- kvm_hypercall1(call, arg1);
+ hcall(call, arg1, 0, 0, 0);
else
async_hcall(call, arg1, 0, 0, 0);
}
/* You can imagine what lazy_hcall2, 3 and 4 look like. :*/
static void lazy_hcall2(unsigned long call,
- unsigned long arg1,
- unsigned long arg2)
+ unsigned long arg1,
+ unsigned long arg2)
{
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- kvm_hypercall2(call, arg1, arg2);
+ hcall(call, arg1, arg2, 0, 0);
else
async_hcall(call, arg1, arg2, 0, 0);
}
static void lazy_hcall3(unsigned long call,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3)
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3)
{
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- kvm_hypercall3(call, arg1, arg2, arg3);
+ hcall(call, arg1, arg2, arg3, 0);
else
async_hcall(call, arg1, arg2, arg3, 0);
}
#ifdef CONFIG_X86_PAE
static void lazy_hcall4(unsigned long call,
- unsigned long arg1,
- unsigned long arg2,
- unsigned long arg3,
- unsigned long arg4)
+ unsigned long arg1,
+ unsigned long arg2,
+ unsigned long arg3,
+ unsigned long arg4)
{
if (paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE)
- kvm_hypercall4(call, arg1, arg2, arg3, arg4);
+ hcall(call, arg1, arg2, arg3, arg4);
else
async_hcall(call, arg1, arg2, arg3, arg4);
}
@@ -196,13 +195,13 @@ static void lazy_hcall4(unsigned long call,
:*/
static void lguest_leave_lazy_mmu_mode(void)
{
- kvm_hypercall0(LHCALL_FLUSH_ASYNC);
+ hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0, 0);
paravirt_leave_lazy_mmu();
}
static void lguest_end_context_switch(struct task_struct *next)
{
- kvm_hypercall0(LHCALL_FLUSH_ASYNC);
+ hcall(LHCALL_FLUSH_ASYNC, 0, 0, 0, 0);
paravirt_end_context_switch(next);
}
@@ -286,7 +285,7 @@ static void lguest_write_idt_entry(gate_desc *dt,
/* Keep the local copy up to date. */
native_write_idt_entry(dt, entrynum, g);
/* Tell Host about this new entry. */
- kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1]);
+ hcall(LHCALL_LOAD_IDT_ENTRY, entrynum, desc[0], desc[1], 0);
}
/*
@@ -300,7 +299,7 @@ static void lguest_load_idt(const struct desc_ptr *desc)
struct desc_struct *idt = (void *)desc->address;
for (i = 0; i < (desc->size+1)/8; i++)
- kvm_hypercall3(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b);
+ hcall(LHCALL_LOAD_IDT_ENTRY, i, idt[i].a, idt[i].b, 0);
}
/*
@@ -321,7 +320,7 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
struct desc_struct *gdt = (void *)desc->address;
for (i = 0; i < (desc->size+1)/8; i++)
- kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b);
+ hcall(LHCALL_LOAD_GDT_ENTRY, i, gdt[i].a, gdt[i].b, 0);
}
/*
@@ -334,8 +333,8 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
{
native_write_gdt_entry(dt, entrynum, desc, type);
/* Tell Host about this new entry. */
- kvm_hypercall3(LHCALL_LOAD_GDT_ENTRY, entrynum,
- dt[entrynum].a, dt[entrynum].b);
+ hcall(LHCALL_LOAD_GDT_ENTRY, entrynum,
+ dt[entrynum].a, dt[entrynum].b, 0);
}
/*
@@ -931,7 +930,7 @@ static int lguest_clockevent_set_next_event(unsigned long delta,
}
/* Please wake us this far in the future. */
- kvm_hypercall1(LHCALL_SET_CLOCKEVENT, delta);
+ hcall(LHCALL_SET_CLOCKEVENT, delta, 0, 0, 0);
return 0;
}
@@ -942,7 +941,7 @@ static void lguest_clockevent_set_mode(enum clock_event_mode mode,
case CLOCK_EVT_MODE_UNUSED:
case CLOCK_EVT_MODE_SHUTDOWN:
/* A 0 argument shuts the clock down. */
- kvm_hypercall0(LHCALL_SET_CLOCKEVENT);
+ hcall(LHCALL_SET_CLOCKEVENT, 0, 0, 0, 0);
break;
case CLOCK_EVT_MODE_ONESHOT:
/* This is what we expect. */
@@ -1100,7 +1099,7 @@ static void set_lguest_basic_apic_ops(void)
/* STOP! Until an interrupt comes in. */
static void lguest_safe_halt(void)
{
- kvm_hypercall0(LHCALL_HALT);
+ hcall(LHCALL_HALT, 0, 0, 0, 0);
}
/*
@@ -1112,8 +1111,8 @@ static void lguest_safe_halt(void)
*/
static void lguest_power_off(void)
{
- kvm_hypercall2(LHCALL_SHUTDOWN, __pa("Power down"),
- LGUEST_SHUTDOWN_POWEROFF);
+ hcall(LHCALL_SHUTDOWN, __pa("Power down"),
+ LGUEST_SHUTDOWN_POWEROFF, 0, 0);
}
/*
@@ -1123,7 +1122,7 @@ static void lguest_power_off(void)
*/
static int lguest_panic(struct notifier_block *nb, unsigned long l, void *p)
{
- kvm_hypercall2(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF);
+ hcall(LHCALL_SHUTDOWN, __pa(p), LGUEST_SHUTDOWN_POWEROFF, 0, 0);
/* The hcall won't return, but to keep gcc happy, we're "done". */
return NOTIFY_DONE;
}
@@ -1162,7 +1161,7 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
len = sizeof(scratch) - 1;
scratch[len] = '\0';
memcpy(scratch, buf, len);
- kvm_hypercall1(LHCALL_NOTIFY, __pa(scratch));
+ hcall(LHCALL_NOTIFY, __pa(scratch), 0, 0, 0);
/* This routine returns the number of bytes actually written. */
return len;
@@ -1174,7 +1173,7 @@ static __init int early_put_chars(u32 vtermno, const char *buf, int count)
*/
static void lguest_restart(char *reason)
{
- kvm_hypercall2(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART);
+ hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0);
}
/*G:050
diff --git a/arch/x86/lguest/i386_head.S b/arch/x86/lguest/i386_head.S
index 27eac0faee48..4f420c2f2d55 100644
--- a/arch/x86/lguest/i386_head.S
+++ b/arch/x86/lguest/i386_head.S
@@ -32,7 +32,7 @@ ENTRY(lguest_entry)
*/
movl $LHCALL_LGUEST_INIT, %eax
movl $lguest_data - __PAGE_OFFSET, %ebx
- .byte 0x0f,0x01,0xc1 /* KVM_HYPERCALL */
+ int $LGUEST_TRAP_ENTRY
/* Set up the initial stack so we can run C code. */
movl $(init_thread_union+THREAD_SIZE),%esp
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-23 00:22:15 +0100