mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 01:22:07 +00:00
Merge branch 'stable/pci.cleanups.v1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/pci.cleanups.v1' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen: xen/pci: Use 'acpi_gsi_to_irq' value unconditionally. xen/pci: Remove 'xen_allocate_pirq_gsi'. xen/pci: Retire unnecessary #ifdef CONFIG_ACPI xen/pci: Move the allocation of IRQs when there are no IOAPIC's to the end xen/pci: Squash pci_xen_initial_domain and xen_setup_pirqs together. xen/pci: Use the xen_register_pirq for HVM and initial domain users xen/pci: In xen_register_pirq bind the GSI to the IRQ after the hypercall. xen/pci: Provide #ifdef CONFIG_ACPI to easy code squashing. xen/pci: Update comments and fix empty spaces. xen/pci: Shuffle code around.
This commit is contained in:
Linus Torvalds
commit
997271cf5e
@ -14,13 +14,14 @@ static inline int pci_xen_hvm_init(void)
|
||||
}
|
||||
#endif
|
||||
#if defined(CONFIG_XEN_DOM0)
|
||||
void __init xen_setup_pirqs(void);
|
||||
int __init pci_xen_initial_domain(void);
|
||||
int xen_find_device_domain_owner(struct pci_dev *dev);
|
||||
int xen_register_device_domain_owner(struct pci_dev *dev, uint16_t domain);
|
||||
int xen_unregister_device_domain_owner(struct pci_dev *dev);
|
||||
#else
|
||||
static inline void __init xen_setup_pirqs(void)
|
||||
static inline int __init pci_xen_initial_domain(void)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
static inline int xen_find_device_domain_owner(struct pci_dev *dev)
|
||||
{
|
||||
|
||||
@ -1,8 +1,13 @@
|
||||
/*
|
||||
* Xen PCI Frontend Stub - puts some "dummy" functions in to the Linux
|
||||
* x86 PCI core to support the Xen PCI Frontend
|
||||
* Xen PCI - handle PCI (INTx) and MSI infrastructure calls for PV, HVM and
|
||||
* initial domain support. We also handle the DSDT _PRT callbacks for GSI's
|
||||
* used in HVM and initial domain mode (PV does not parse ACPI, so it has no
|
||||
* concept of GSIs). Under PV we hook under the pnbbios API for IRQs and
|
||||
* 0xcf8 PCI configuration read/write.
|
||||
*
|
||||
* Author: Ryan Wilson <hap9@epoch.ncsc.mil>
|
||||
* Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
|
||||
* Stefano Stabellini <stefano.stabellini@eu.citrix.com>
|
||||
*/
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
@ -19,22 +24,53 @@
|
||||
#include <xen/events.h>
|
||||
#include <asm/xen/pci.h>
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,
|
||||
int trigger, int polarity)
|
||||
static int xen_pcifront_enable_irq(struct pci_dev *dev)
|
||||
{
|
||||
int rc, irq;
|
||||
int rc;
|
||||
int share = 1;
|
||||
int pirq;
|
||||
u8 gsi;
|
||||
|
||||
rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi);
|
||||
if (rc < 0) {
|
||||
dev_warn(&dev->dev, "Xen PCI: failed to read interrupt line: %d\n",
|
||||
rc);
|
||||
return rc;
|
||||
}
|
||||
/* In PV DomU the Xen PCI backend puts the PIRQ in the interrupt line.*/
|
||||
pirq = gsi;
|
||||
|
||||
if (gsi < NR_IRQS_LEGACY)
|
||||
share = 0;
|
||||
|
||||
rc = xen_bind_pirq_gsi_to_irq(gsi, pirq, share, "pcifront");
|
||||
if (rc < 0) {
|
||||
dev_warn(&dev->dev, "Xen PCI: failed to bind GSI%d (PIRQ%d) to IRQ: %d\n",
|
||||
gsi, pirq, rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
dev->irq = rc;
|
||||
dev_info(&dev->dev, "Xen PCI mapped GSI%d to IRQ%d\n", gsi, dev->irq);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_ACPI
|
||||
static int xen_register_pirq(u32 gsi, int gsi_override, int triggering,
|
||||
bool set_pirq)
|
||||
{
|
||||
int rc, pirq = -1, irq = -1;
|
||||
struct physdev_map_pirq map_irq;
|
||||
int shareable = 0;
|
||||
char *name;
|
||||
|
||||
if (!xen_hvm_domain())
|
||||
return -1;
|
||||
if (set_pirq)
|
||||
pirq = gsi;
|
||||
|
||||
map_irq.domid = DOMID_SELF;
|
||||
map_irq.type = MAP_PIRQ_TYPE_GSI;
|
||||
map_irq.index = gsi;
|
||||
map_irq.pirq = -1;
|
||||
map_irq.pirq = pirq;
|
||||
|
||||
rc = HYPERVISOR_physdev_op(PHYSDEVOP_map_pirq, &map_irq);
|
||||
if (rc) {
|
||||
@ -42,7 +78,7 @@ static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,
|
||||
return -1;
|
||||
}
|
||||
|
||||
if (trigger == ACPI_EDGE_SENSITIVE) {
|
||||
if (triggering == ACPI_EDGE_SENSITIVE) {
|
||||
shareable = 0;
|
||||
name = "ioapic-edge";
|
||||
} else {
|
||||
@ -50,12 +86,63 @@ static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,
|
||||
name = "ioapic-level";
|
||||
}
|
||||
|
||||
irq = xen_bind_pirq_gsi_to_irq(gsi, map_irq.pirq, shareable, name);
|
||||
if (gsi_override >= 0)
|
||||
gsi = gsi_override;
|
||||
|
||||
printk(KERN_DEBUG "xen: --> irq=%d, pirq=%d\n", irq, map_irq.pirq);
|
||||
irq = xen_bind_pirq_gsi_to_irq(gsi, map_irq.pirq, shareable, name);
|
||||
if (irq < 0)
|
||||
goto out;
|
||||
|
||||
printk(KERN_DEBUG "xen: --> pirq=%d -> irq=%d (gsi=%d)\n", map_irq.pirq, irq, gsi);
|
||||
out:
|
||||
return irq;
|
||||
}
|
||||
|
||||
static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,
|
||||
int trigger, int polarity)
|
||||
{
|
||||
if (!xen_hvm_domain())
|
||||
return -1;
|
||||
|
||||
return xen_register_pirq(gsi, -1 /* no GSI override */, trigger,
|
||||
false /* no mapping of GSI to PIRQ */);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_XEN_DOM0
|
||||
static int xen_register_gsi(u32 gsi, int gsi_override, int triggering, int polarity)
|
||||
{
|
||||
int rc, irq;
|
||||
struct physdev_setup_gsi setup_gsi;
|
||||
|
||||
if (!xen_pv_domain())
|
||||
return -1;
|
||||
|
||||
printk(KERN_DEBUG "xen: registering gsi %u triggering %d polarity %d\n",
|
||||
gsi, triggering, polarity);
|
||||
|
||||
irq = xen_register_pirq(gsi, gsi_override, triggering, true);
|
||||
|
||||
setup_gsi.gsi = gsi;
|
||||
setup_gsi.triggering = (triggering == ACPI_EDGE_SENSITIVE ? 0 : 1);
|
||||
setup_gsi.polarity = (polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
|
||||
|
||||
rc = HYPERVISOR_physdev_op(PHYSDEVOP_setup_gsi, &setup_gsi);
|
||||
if (rc == -EEXIST)
|
||||
printk(KERN_INFO "Already setup the GSI :%d\n", gsi);
|
||||
else if (rc) {
|
||||
printk(KERN_ERR "Failed to setup GSI :%d, err_code:%d\n",
|
||||
gsi, rc);
|
||||
}
|
||||
|
||||
return irq;
|
||||
}
|
||||
|
||||
static int acpi_register_gsi_xen(struct device *dev, u32 gsi,
|
||||
int trigger, int polarity)
|
||||
{
|
||||
return xen_register_gsi(gsi, -1 /* no GSI override */, trigger, polarity);
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#if defined(CONFIG_PCI_MSI)
|
||||
@ -65,6 +152,43 @@ static int acpi_register_gsi_xen_hvm(struct device *dev, u32 gsi,
|
||||
struct xen_pci_frontend_ops *xen_pci_frontend;
|
||||
EXPORT_SYMBOL_GPL(xen_pci_frontend);
|
||||
|
||||
static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
|
||||
{
|
||||
int irq, ret, i;
|
||||
struct msi_desc *msidesc;
|
||||
int *v;
|
||||
|
||||
v = kzalloc(sizeof(int) * max(1, nvec), GFP_KERNEL);
|
||||
if (!v)
|
||||
return -ENOMEM;
|
||||
|
||||
if (type == PCI_CAP_ID_MSIX)
|
||||
ret = xen_pci_frontend_enable_msix(dev, v, nvec);
|
||||
else
|
||||
ret = xen_pci_frontend_enable_msi(dev, v);
|
||||
if (ret)
|
||||
goto error;
|
||||
i = 0;
|
||||
list_for_each_entry(msidesc, &dev->msi_list, list) {
|
||||
irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], 0,
|
||||
(type == PCI_CAP_ID_MSIX) ?
|
||||
"pcifront-msi-x" :
|
||||
"pcifront-msi",
|
||||
DOMID_SELF);
|
||||
if (irq < 0)
|
||||
goto free;
|
||||
i++;
|
||||
}
|
||||
kfree(v);
|
||||
return 0;
|
||||
|
||||
error:
|
||||
dev_err(&dev->dev, "Xen PCI frontend has not registered MSI/MSI-X support!\n");
|
||||
free:
|
||||
kfree(v);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#define XEN_PIRQ_MSI_DATA (MSI_DATA_TRIGGER_EDGE | \
|
||||
MSI_DATA_LEVEL_ASSERT | (3 << 8) | MSI_DATA_VECTOR(0))
|
||||
|
||||
@ -123,67 +247,6 @@ error:
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
/*
|
||||
* For MSI interrupts we have to use drivers/xen/event.s functions to
|
||||
* allocate an irq_desc and setup the right */
|
||||
|
||||
|
||||
static int xen_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
|
||||
{
|
||||
int irq, ret, i;
|
||||
struct msi_desc *msidesc;
|
||||
int *v;
|
||||
|
||||
v = kzalloc(sizeof(int) * max(1, nvec), GFP_KERNEL);
|
||||
if (!v)
|
||||
return -ENOMEM;
|
||||
|
||||
if (type == PCI_CAP_ID_MSIX)
|
||||
ret = xen_pci_frontend_enable_msix(dev, v, nvec);
|
||||
else
|
||||
ret = xen_pci_frontend_enable_msi(dev, v);
|
||||
if (ret)
|
||||
goto error;
|
||||
i = 0;
|
||||
list_for_each_entry(msidesc, &dev->msi_list, list) {
|
||||
irq = xen_bind_pirq_msi_to_irq(dev, msidesc, v[i], 0,
|
||||
(type == PCI_CAP_ID_MSIX) ?
|
||||
"pcifront-msi-x" :
|
||||
"pcifront-msi",
|
||||
DOMID_SELF);
|
||||
if (irq < 0)
|
||||
goto free;
|
||||
i++;
|
||||
}
|
||||
kfree(v);
|
||||
return 0;
|
||||
|
||||
error:
|
||||
dev_err(&dev->dev, "Xen PCI frontend has not registered MSI/MSI-X support!\n");
|
||||
free:
|
||||
kfree(v);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void xen_teardown_msi_irqs(struct pci_dev *dev)
|
||||
{
|
||||
struct msi_desc *msidesc;
|
||||
|
||||
msidesc = list_entry(dev->msi_list.next, struct msi_desc, list);
|
||||
if (msidesc->msi_attrib.is_msix)
|
||||
xen_pci_frontend_disable_msix(dev);
|
||||
else
|
||||
xen_pci_frontend_disable_msi(dev);
|
||||
|
||||
/* Free the IRQ's and the msidesc using the generic code. */
|
||||
default_teardown_msi_irqs(dev);
|
||||
}
|
||||
|
||||
static void xen_teardown_msi_irq(unsigned int irq)
|
||||
{
|
||||
xen_destroy_irq(irq);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_XEN_DOM0
|
||||
static int xen_initdom_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
|
||||
{
|
||||
@ -242,45 +305,28 @@ out:
|
||||
return ret;
|
||||
}
|
||||
#endif
|
||||
#endif
|
||||
|
||||
static int xen_pcifront_enable_irq(struct pci_dev *dev)
|
||||
static void xen_teardown_msi_irqs(struct pci_dev *dev)
|
||||
{
|
||||
int rc;
|
||||
int share = 1;
|
||||
int pirq;
|
||||
u8 gsi;
|
||||
struct msi_desc *msidesc;
|
||||
|
||||
rc = pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &gsi);
|
||||
if (rc < 0) {
|
||||
dev_warn(&dev->dev, "Xen PCI: failed to read interrupt line: %d\n",
|
||||
rc);
|
||||
return rc;
|
||||
}
|
||||
msidesc = list_entry(dev->msi_list.next, struct msi_desc, list);
|
||||
if (msidesc->msi_attrib.is_msix)
|
||||
xen_pci_frontend_disable_msix(dev);
|
||||
else
|
||||
xen_pci_frontend_disable_msi(dev);
|
||||
|
||||
rc = xen_allocate_pirq_gsi(gsi);
|
||||
if (rc < 0) {
|
||||
dev_warn(&dev->dev, "Xen PCI: failed to allocate a PIRQ for GSI%d: %d\n",
|
||||
gsi, rc);
|
||||
return rc;
|
||||
}
|
||||
pirq = rc;
|
||||
|
||||
if (gsi < NR_IRQS_LEGACY)
|
||||
share = 0;
|
||||
|
||||
rc = xen_bind_pirq_gsi_to_irq(gsi, pirq, share, "pcifront");
|
||||
if (rc < 0) {
|
||||
dev_warn(&dev->dev, "Xen PCI: failed to bind GSI%d (PIRQ%d) to IRQ: %d\n",
|
||||
gsi, pirq, rc);
|
||||
return rc;
|
||||
}
|
||||
|
||||
dev->irq = rc;
|
||||
dev_info(&dev->dev, "Xen PCI mapped GSI%d to IRQ%d\n", gsi, dev->irq);
|
||||
return 0;
|
||||
/* Free the IRQ's and the msidesc using the generic code. */
|
||||
default_teardown_msi_irqs(dev);
|
||||
}
|
||||
|
||||
static void xen_teardown_msi_irq(unsigned int irq)
|
||||
{
|
||||
xen_destroy_irq(irq);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
int __init pci_xen_init(void)
|
||||
{
|
||||
if (!xen_pv_domain() || xen_initial_domain())
|
||||
@ -327,79 +373,6 @@ int __init pci_xen_hvm_init(void)
|
||||
}
|
||||
|
||||
#ifdef CONFIG_XEN_DOM0
|
||||
static int xen_register_pirq(u32 gsi, int gsi_override, int triggering)
|
||||
{
|
||||
int rc, pirq, irq = -1;
|
||||
struct physdev_map_pirq map_irq;
|
||||
int shareable = 0;
|
||||
char *name;
|
||||
|
||||
if (!xen_pv_domain())
|
||||
return -1;
|
||||
|
||||
if (triggering == ACPI_EDGE_SENSITIVE) {
|
||||
shareable = 0;
|
||||
name = "ioapic-edge";
|
||||
} else {
|
||||
shareable = 1;
|
||||
name = "ioapic-level";
|
||||
}
|
||||
pirq = xen_allocate_pirq_gsi(gsi);
|
||||
if (pirq < 0)
|
||||
goto out;
|
||||
|
||||
if (gsi_override >= 0)
|
||||
irq = xen_bind_pirq_gsi_to_irq(gsi_override, pirq, shareable, name);
|
||||
else
|
||||
irq = xen_bind_pirq_gsi_to_irq(gsi, pirq, shareable, name);
|
||||
if (irq < 0)
|
||||
goto out;
|
||||
|
||||
printk(KERN_DEBUG "xen: --> pirq=%d -> irq=%d (gsi=%d)\n", pirq, irq, gsi);
|
||||
|
||||
map_irq.domid = DOMID_SELF;
|
||||
map_irq.type = MAP_PIRQ_TYPE_GSI;
|
||||
map_irq.index = gsi;
|
||||
map_irq.pirq = pirq;
|
||||
|
||||
rc = HYPERVISOR_physdev_op(PHYSDEVOP_map_pirq, &map_irq);
|
||||
if (rc) {
|
||||
printk(KERN_WARNING "xen map irq failed %d\n", rc);
|
||||
return -1;
|
||||
}
|
||||
|
||||
out:
|
||||
return irq;
|
||||
}
|
||||
|
||||
static int xen_register_gsi(u32 gsi, int gsi_override, int triggering, int polarity)
|
||||
{
|
||||
int rc, irq;
|
||||
struct physdev_setup_gsi setup_gsi;
|
||||
|
||||
if (!xen_pv_domain())
|
||||
return -1;
|
||||
|
||||
printk(KERN_DEBUG "xen: registering gsi %u triggering %d polarity %d\n",
|
||||
gsi, triggering, polarity);
|
||||
|
||||
irq = xen_register_pirq(gsi, gsi_override, triggering);
|
||||
|
||||
setup_gsi.gsi = gsi;
|
||||
setup_gsi.triggering = (triggering == ACPI_EDGE_SENSITIVE ? 0 : 1);
|
||||
setup_gsi.polarity = (polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
|
||||
|
||||
rc = HYPERVISOR_physdev_op(PHYSDEVOP_setup_gsi, &setup_gsi);
|
||||
if (rc == -EEXIST)
|
||||
printk(KERN_INFO "Already setup the GSI :%d\n", gsi);
|
||||
else if (rc) {
|
||||
printk(KERN_ERR "Failed to setup GSI :%d, err_code:%d\n",
|
||||
gsi, rc);
|
||||
}
|
||||
|
||||
return irq;
|
||||
}
|
||||
|
||||
static __init void xen_setup_acpi_sci(void)
|
||||
{
|
||||
int rc;
|
||||
@ -419,7 +392,7 @@ static __init void xen_setup_acpi_sci(void)
|
||||
}
|
||||
trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
|
||||
polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
|
||||
|
||||
|
||||
printk(KERN_INFO "xen: sci override: global_irq=%d trigger=%d "
|
||||
"polarity=%d\n", gsi, trigger, polarity);
|
||||
|
||||
@ -434,10 +407,9 @@ static __init void xen_setup_acpi_sci(void)
|
||||
* the ACPI interpreter and keels over since IRQ 9 has not been
|
||||
* setup as we had setup IRQ 20 for it).
|
||||
*/
|
||||
/* Check whether the GSI != IRQ */
|
||||
if (acpi_gsi_to_irq(gsi, &irq) == 0) {
|
||||
if (irq >= 0 && irq != gsi)
|
||||
/* Bugger, we MUST have that IRQ. */
|
||||
/* Use the provided value if it's valid. */
|
||||
if (irq >= 0)
|
||||
gsi_override = irq;
|
||||
}
|
||||
|
||||
@ -447,41 +419,16 @@ static __init void xen_setup_acpi_sci(void)
|
||||
return;
|
||||
}
|
||||
|
||||
static int acpi_register_gsi_xen(struct device *dev, u32 gsi,
|
||||
int trigger, int polarity)
|
||||
int __init pci_xen_initial_domain(void)
|
||||
{
|
||||
return xen_register_gsi(gsi, -1 /* no GSI override */, trigger, polarity);
|
||||
}
|
||||
int irq;
|
||||
|
||||
static int __init pci_xen_initial_domain(void)
|
||||
{
|
||||
#ifdef CONFIG_PCI_MSI
|
||||
x86_msi.setup_msi_irqs = xen_initdom_setup_msi_irqs;
|
||||
x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
|
||||
#endif
|
||||
xen_setup_acpi_sci();
|
||||
__acpi_register_gsi = acpi_register_gsi_xen;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void __init xen_setup_pirqs(void)
|
||||
{
|
||||
int pirq, irq;
|
||||
|
||||
pci_xen_initial_domain();
|
||||
|
||||
if (0 == nr_ioapics) {
|
||||
for (irq = 0; irq < NR_IRQS_LEGACY; irq++) {
|
||||
pirq = xen_allocate_pirq_gsi(irq);
|
||||
if (WARN(pirq < 0,
|
||||
"Could not allocate PIRQ for legacy interrupt\n"))
|
||||
break;
|
||||
irq = xen_bind_pirq_gsi_to_irq(irq, pirq, 0, "xt-pic");
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
/* Pre-allocate legacy irqs */
|
||||
for (irq = 0; irq < NR_IRQS_LEGACY; irq++) {
|
||||
int trigger, polarity;
|
||||
@ -490,12 +437,16 @@ void __init xen_setup_pirqs(void)
|
||||
continue;
|
||||
|
||||
xen_register_pirq(irq, -1 /* no GSI override */,
|
||||
trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE);
|
||||
trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE,
|
||||
true /* Map GSI to PIRQ */);
|
||||
}
|
||||
if (0 == nr_ioapics) {
|
||||
for (irq = 0; irq < NR_IRQS_LEGACY; irq++)
|
||||
xen_bind_pirq_gsi_to_irq(irq, irq, 0, "xt-pic");
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_XEN_DOM0
|
||||
struct xen_device_domain_owner {
|
||||
domid_t domain;
|
||||
struct pci_dev *dev;
|
||||
|
||||
@ -615,11 +615,6 @@ static int find_irq_by_gsi(unsigned gsi)
|
||||
return -1;
|
||||
}
|
||||
|
||||
int xen_allocate_pirq_gsi(unsigned gsi)
|
||||
{
|
||||
return gsi;
|
||||
}
|
||||
|
||||
/*
|
||||
* Do not make any assumptions regarding the relationship between the
|
||||
* IRQ number returned here and the Xen pirq argument.
|
||||
@ -1693,6 +1688,6 @@ void __init xen_init_IRQ(void)
|
||||
} else {
|
||||
irq_ctx_init(smp_processor_id());
|
||||
if (xen_initial_domain())
|
||||
xen_setup_pirqs();
|
||||
pci_xen_initial_domain();
|
||||
}
|
||||
}
|
||||
|
||||
@ -74,8 +74,6 @@ int xen_set_callback_via(uint64_t via);
|
||||
void xen_evtchn_do_upcall(struct pt_regs *regs);
|
||||
void xen_hvm_evtchn_do_upcall(void);
|
||||
|
||||
/* Allocate a pirq for a physical interrupt, given a gsi. */
|
||||
int xen_allocate_pirq_gsi(unsigned gsi);
|
||||
/* Bind a pirq for a physical interrupt to an irq. */
|
||||
int xen_bind_pirq_gsi_to_irq(unsigned gsi,
|
||||
unsigned pirq, int shareable, char *name);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user