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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen staging] iommu: rename iommu_dom0_strict and iommu_passthrough
commit cf44ba9810ebe98a8612098783b29c4fe323c363
Author: Roger Pau Monné <roger.pau@xxxxxxxxxx>
AuthorDate: Fri Sep 7 11:07:00 2018 +0200
Commit: Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Wed Sep 12 16:28:52 2018 +0200
iommu: rename iommu_dom0_strict and iommu_passthrough
To iommu_hwdom_strict and iommu_hwdom_passthrough which is more
descriptive of their usage. Also change their type from bool_t to
bool.
No functional change.
Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
Reviewed-by: Wei Liu <wei.liu2@xxxxxxxxxx>
Acked-by: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
---
xen/arch/x86/x86_64/mm.c | 3 ++-
xen/drivers/passthrough/amd/iommu_init.c | 2 +-
xen/drivers/passthrough/amd/pci_amd_iommu.c | 4 ++--
xen/drivers/passthrough/iommu.c | 27 ++++++++++++++-------------
xen/drivers/passthrough/vtd/iommu.c | 16 ++++++++--------
xen/drivers/passthrough/vtd/x86/vtd.c | 2 +-
xen/include/xen/iommu.h | 6 ++++--
7 files changed, 32 insertions(+), 28 deletions(-)
diff --git a/xen/arch/x86/x86_64/mm.c b/xen/arch/x86/x86_64/mm.c
index 606508c871..90a648c956 100644
--- a/xen/arch/x86/x86_64/mm.c
+++ b/xen/arch/x86/x86_64/mm.c
@@ -1426,7 +1426,8 @@ int memory_add(unsigned long spfn, unsigned long epfn,
unsigned int pxm)
if ( ret )
goto destroy_m2p;
- if ( iommu_enabled && !iommu_passthrough && !need_iommu(hardware_domain) )
+ if ( iommu_enabled && !iommu_hwdom_passthrough &&
+ !need_iommu(hardware_domain) )
{
for ( i = spfn; i < epfn; i++ )
if ( iommu_map_page(hardware_domain, i, i,
IOMMUF_readable|IOMMUF_writable) )
diff --git a/xen/drivers/passthrough/amd/iommu_init.c
b/xen/drivers/passthrough/amd/iommu_init.c
index 474992a75a..15c10b0929 100644
--- a/xen/drivers/passthrough/amd/iommu_init.c
+++ b/xen/drivers/passthrough/amd/iommu_init.c
@@ -1062,7 +1062,7 @@ static void __init amd_iommu_init_cleanup(void)
radix_tree_destroy(&ivrs_maps, xfree);
iommu_enabled = 0;
- iommu_passthrough = 0;
+ iommu_hwdom_passthrough = false;
iommu_intremap = 0;
iommuv2_enabled = 0;
}
diff --git a/xen/drivers/passthrough/amd/pci_amd_iommu.c
b/xen/drivers/passthrough/amd/pci_amd_iommu.c
index 12d2695b89..ab39e7500d 100644
--- a/xen/drivers/passthrough/amd/pci_amd_iommu.c
+++ b/xen/drivers/passthrough/amd/pci_amd_iommu.c
@@ -121,7 +121,7 @@ static void amd_iommu_setup_domain_device(
BUG_ON( !hd->arch.root_table || !hd->arch.paging_mode ||
!iommu->dev_table.buffer );
- if ( iommu_passthrough && is_hardware_domain(domain) )
+ if ( iommu_hwdom_passthrough && is_hardware_domain(domain) )
valid = 0;
if ( ats_enabled )
@@ -256,7 +256,7 @@ static void __hwdom_init amd_iommu_hwdom_init(struct domain
*d)
if ( allocate_domain_resources(dom_iommu(d)) )
BUG();
- if ( !iommu_passthrough && !need_iommu(d) )
+ if ( !iommu_hwdom_passthrough && !need_iommu(d) )
{
int rc = 0;
diff --git a/xen/drivers/passthrough/iommu.c b/xen/drivers/passthrough/iommu.c
index e917901976..8fef6db8af 100644
--- a/xen/drivers/passthrough/iommu.c
+++ b/xen/drivers/passthrough/iommu.c
@@ -52,15 +52,16 @@ custom_param("iommu", parse_iommu_param);
bool_t __initdata iommu_enable = 1;
bool_t __read_mostly iommu_enabled;
bool_t __read_mostly force_iommu;
-bool_t __hwdom_initdata iommu_dom0_strict;
bool_t __read_mostly iommu_verbose;
bool_t __read_mostly iommu_workaround_bios_bug;
bool_t __read_mostly iommu_igfx = 1;
-bool_t __read_mostly iommu_passthrough;
bool_t __read_mostly iommu_snoop = 1;
bool_t __read_mostly iommu_qinval = 1;
bool_t __read_mostly iommu_intremap = 1;
+bool __hwdom_initdata iommu_hwdom_strict;
+bool __read_mostly iommu_hwdom_passthrough;
+
/*
* In the current implementation of VT-d posted interrupts, in some extreme
* cases, the per cpu list which saves the blocked vCPU will be very long,
@@ -121,9 +122,9 @@ static int __init parse_iommu_param(const char *s)
else if ( !strncmp(s, "amd-iommu-perdev-intremap", ss - s) )
amd_iommu_perdev_intremap = val;
else if ( !strncmp(s, "dom0-passthrough", ss - s) )
- iommu_passthrough = val;
+ iommu_hwdom_passthrough = val;
else if ( !strncmp(s, "dom0-strict", ss - s) )
- iommu_dom0_strict = val;
+ iommu_hwdom_strict = val;
else if ( !strncmp(s, "sharept", ss - s) )
iommu_hap_pt_share = val;
else
@@ -158,10 +159,10 @@ static void __hwdom_init check_hwdom_reqs(struct domain
*d)
arch_iommu_check_autotranslated_hwdom(d);
- if ( iommu_passthrough )
+ if ( iommu_hwdom_passthrough )
panic("Dom0 uses paging translated mode, dom0-passthrough must not be
enabled\n");
- iommu_dom0_strict = 1;
+ iommu_hwdom_strict = true;
}
void __hwdom_init iommu_hwdom_init(struct domain *d)
@@ -174,7 +175,7 @@ void __hwdom_init iommu_hwdom_init(struct domain *d)
return;
register_keyhandler('o', &iommu_dump_p2m_table, "dump iommu p2m table", 0);
- d->need_iommu = !!iommu_dom0_strict;
+ d->need_iommu = iommu_hwdom_strict;
if ( need_iommu(d) && !iommu_use_hap_pt(d) )
{
struct page_info *page;
@@ -370,8 +371,8 @@ int __init iommu_setup(void)
int rc = -ENODEV;
bool_t force_intremap = force_iommu && iommu_intremap;
- if ( iommu_dom0_strict )
- iommu_passthrough = 0;
+ if ( iommu_hwdom_strict )
+ iommu_hwdom_passthrough = false;
if ( iommu_enable )
{
@@ -392,15 +393,15 @@ int __init iommu_setup(void)
if ( !iommu_enabled )
{
iommu_snoop = 0;
- iommu_passthrough = 0;
- iommu_dom0_strict = 0;
+ iommu_hwdom_passthrough = false;
+ iommu_hwdom_strict = false;
}
printk("I/O virtualisation %sabled\n", iommu_enabled ? "en" : "dis");
if ( iommu_enabled )
{
printk(" - Dom0 mode: %s\n",
- iommu_passthrough ? "Passthrough" :
- iommu_dom0_strict ? "Strict" : "Relaxed");
+ iommu_hwdom_passthrough ? "Passthrough" :
+ iommu_hwdom_strict ? "Strict" : "Relaxed");
printk("Interrupt remapping %sabled\n", iommu_intremap ? "en" : "dis");
tasklet_init(&iommu_pt_cleanup_tasklet, iommu_free_pagetables, 0);
}
diff --git a/xen/drivers/passthrough/vtd/iommu.c
b/xen/drivers/passthrough/vtd/iommu.c
index 8d768a4693..89fa382280 100644
--- a/xen/drivers/passthrough/vtd/iommu.c
+++ b/xen/drivers/passthrough/vtd/iommu.c
@@ -1304,7 +1304,7 @@ static void __hwdom_init intel_iommu_hwdom_init(struct
domain *d)
{
struct acpi_drhd_unit *drhd;
- if ( !iommu_passthrough && is_pv_domain(d) )
+ if ( !iommu_hwdom_passthrough && is_pv_domain(d) )
{
/* Set up 1:1 page table for hardware domain. */
vtd_set_hwdom_mapping(d);
@@ -1391,7 +1391,7 @@ int domain_context_mapping_one(
return res;
}
- if ( iommu_passthrough && is_hardware_domain(domain) )
+ if ( iommu_hwdom_passthrough && is_hardware_domain(domain) )
{
context_set_translation_type(*context, CONTEXT_TT_PASS_THRU);
agaw = level_to_agaw(iommu->nr_pt_levels);
@@ -1781,7 +1781,7 @@ static int __must_check intel_iommu_map_page(struct
domain *d,
return 0;
/* Do nothing if hardware domain and iommu supports pass thru. */
- if ( iommu_passthrough && is_hardware_domain(d) )
+ if ( iommu_hwdom_passthrough && is_hardware_domain(d) )
return 0;
spin_lock(&hd->arch.mapping_lock);
@@ -1826,7 +1826,7 @@ static int __must_check intel_iommu_unmap_page(struct
domain *d,
unsigned long gfn)
{
/* Do nothing if hardware domain and iommu supports pass thru. */
- if ( iommu_passthrough && is_hardware_domain(d) )
+ if ( iommu_hwdom_passthrough && is_hardware_domain(d) )
return 0;
return dma_pte_clear_one(d, (paddr_t)gfn << PAGE_SHIFT_4K);
@@ -2269,8 +2269,8 @@ int __init intel_vtd_setup(void)
if ( iommu_snoop && !ecap_snp_ctl(iommu->ecap) )
iommu_snoop = 0;
- if ( iommu_passthrough && !ecap_pass_thru(iommu->ecap) )
- iommu_passthrough = 0;
+ if ( iommu_hwdom_passthrough && !ecap_pass_thru(iommu->ecap) )
+ iommu_hwdom_passthrough = false;
if ( iommu_qinval && !ecap_queued_inval(iommu->ecap) )
iommu_qinval = 0;
@@ -2308,7 +2308,7 @@ int __init intel_vtd_setup(void)
#define P(p,s) printk("Intel VT-d %s %senabled.\n", s, (p)? "" : "not ")
P(iommu_snoop, "Snoop Control");
- P(iommu_passthrough, "Dom0 DMA Passthrough");
+ P(iommu_hwdom_passthrough, "Dom0 DMA Passthrough");
P(iommu_qinval, "Queued Invalidation");
P(iommu_intremap, "Interrupt Remapping");
P(iommu_intpost, "Posted Interrupt");
@@ -2330,7 +2330,7 @@ int __init intel_vtd_setup(void)
error:
iommu_enabled = 0;
iommu_snoop = 0;
- iommu_passthrough = 0;
+ iommu_hwdom_passthrough = false;
iommu_qinval = 0;
iommu_intremap = 0;
iommu_intpost = 0;
diff --git a/xen/drivers/passthrough/vtd/x86/vtd.c
b/xen/drivers/passthrough/vtd/x86/vtd.c
index ac653eea0e..ef1a02cba6 100644
--- a/xen/drivers/passthrough/vtd/x86/vtd.c
+++ b/xen/drivers/passthrough/vtd/x86/vtd.c
@@ -103,7 +103,7 @@ void __hwdom_init vtd_set_hwdom_mapping(struct domain *d)
* If dom0-strict mode is enabled then exclude conventional RAM
* and let the common code map dom0's pages.
*/
- if ( iommu_dom0_strict &&
+ if ( iommu_hwdom_strict &&
page_is_ram_type(pfn, RAM_TYPE_CONVENTIONAL) )
continue;
diff --git a/xen/include/xen/iommu.h b/xen/include/xen/iommu.h
index e35d941f3c..392cf1e6b9 100644
--- a/xen/include/xen/iommu.h
+++ b/xen/include/xen/iommu.h
@@ -29,13 +29,15 @@
#include <asm/iommu.h>
extern bool_t iommu_enable, iommu_enabled;
-extern bool_t force_iommu, iommu_dom0_strict, iommu_verbose;
-extern bool_t iommu_workaround_bios_bug, iommu_igfx, iommu_passthrough;
+extern bool_t force_iommu, iommu_verbose;
+extern bool_t iommu_workaround_bios_bug, iommu_igfx;
extern bool_t iommu_snoop, iommu_qinval, iommu_intremap, iommu_intpost;
extern bool_t iommu_hap_pt_share;
extern bool_t iommu_debug;
extern bool_t amd_iommu_perdev_intremap;
+extern bool iommu_hwdom_strict, iommu_hwdom_passthrough;
+
extern unsigned int iommu_dev_iotlb_timeout;
int iommu_setup(void);
--
generated by git-patchbot for /home/xen/git/xen.git#staging
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