xen-project/xen
1
0 Fork 0
mirror of https://github.com/xen-project/xen.git synced 2026-10-28 02:01:24 +01:00
Code Issues Activity

arch/arm: let map_mmio_regions() use start and count

Browse Source 
Currently, the arguments given to the function map_mmio_regions() to
describe the memory range to be mapped are the start and end page frame
numbers of the range to be mapped. However, this could give rise to
issues due to the range being inclusive or exclusive of the end gfn
given as parameter. This commit changes the interface of the function
to accept the start gfn and the number of gfns to be mapped.
This commit also changes the interface of the function map_one_mmio(),
helper for the xgene-storm platform, which is a wrapper for the function
map_mmio_regions() and does not need its arguments to be paddr_t.

NOTE: platform-specific code has not been tested, save for the
      sunxi and the Arndale Exynos 5 platforms (see the Tested-by
      below for the latter).

Signed-off-by: Arianna Avanzini <avanzini.arianna@gmail.com>
Acked-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@eu.citrix.com>
Tested-by: Julien Grall <julien.grall@citrix.com>
Cc: Dario Faggioli <dario.faggioli@citrix.com>
Cc: Paolo Valente <paolo.valente@unimore.it>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>
Cc: Tim Deegan <tim@xen.org>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Eric Trudeau <etrudeau@broadcom.com>
Cc: Viktor Kleinik <viktor.kleinik@globallogic.com>
[ ijc -- remove stray extra parameter in xgene-storm.c ]
This commit is contained in:
Arianna Avanzini authored and Ian Campbell committed 2014-07-18 13:38:08 +01:00
1 parent 59bb589096
commit 88c10b0d6e
7 files changed
+26 -34
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

xen/arch/arm/domain_build.c
+1 -1
View File
@@ -1020,7 +1020,7 @@ static int map_device(struct domain *d, struct dt_device_node *dev)
}
res = map_mmio_regions(d,
paddr_to_pfn(addr & PAGE_MASK),
paddr_to_pfn_aligned(addr + size),
DIV_ROUND_UP(size, PAGE_SIZE),
paddr_to_pfn(addr & PAGE_MASK));
if ( res )
{
xen/arch/arm/gic-v2.c
+3 -8
View File
@@ -440,22 +440,17 @@ static int gicv2v_setup(struct domain *d)
* The second page is always mapped at +4K irrespective of the
* GIC_64K_STRIDE quirk. The DTB passed to the guest reflects this.
*/
ret = map_mmio_regions(d, paddr_to_pfn(d->arch.vgic.cbase),
paddr_to_pfn_aligned(d->arch.vgic.cbase + PAGE_SIZE),
ret = map_mmio_regions(d, paddr_to_pfn(d->arch.vgic.cbase), 1,
paddr_to_pfn(gicv2.vbase));
if ( ret )
return ret;
if ( !platform_has_quirk(PLATFORM_QUIRK_GIC_64K_STRIDE) )
ret = map_mmio_regions(d, paddr_to_pfn(d->arch.vgic.cbase + PAGE_SIZE),
paddr_to_pfn_aligned(d->arch.vgic.cbase +
(2 * PAGE_SIZE)),
paddr_to_pfn(gicv2.vbase + PAGE_SIZE));
2, paddr_to_pfn(gicv2.vbase + PAGE_SIZE));
else
ret = map_mmio_regions(d, paddr_to_pfn(d->arch.vgic.cbase + PAGE_SIZE),
paddr_to_pfn_aligned(d->arch.vgic.cbase +
(2 * PAGE_SIZE)),
paddr_to_pfn(gicv2.vbase + 16*PAGE_SIZE));
2, paddr_to_pfn(gicv2.vbase + 16*PAGE_SIZE));
return ret;
}
xen/arch/arm/p2m.c
+2 -2
View File
@@ -814,12 +814,12 @@ int p2m_populate_ram(struct domain *d,
int map_mmio_regions(struct domain *d,
unsigned long start_gfn,
unsigned long end_gfn,
unsigned long nr_mfns,
unsigned long mfn)
{
return apply_p2m_changes(d, INSERT,
pfn_to_paddr(start_gfn),
pfn_to_paddr(end_gfn),
pfn_to_paddr(start_gfn + nr_mfns),
pfn_to_paddr(mfn),
MATTR_DEV, p2m_mmio_direct);
}
xen/arch/arm/platforms/exynos5.c
+2 -4
View File
@@ -54,13 +54,11 @@ static int exynos5_init_time(void)
static int exynos5_specific_mapping(struct domain *d)
{
/* Map the chip ID */
map_mmio_regions(d, paddr_to_pfn(EXYNOS5_PA_CHIPID),
paddr_to_pfn_aligned(EXYNOS5_PA_CHIPID + PAGE_SIZE),
map_mmio_regions(d, paddr_to_pfn(EXYNOS5_PA_CHIPID), 1,
paddr_to_pfn(EXYNOS5_PA_CHIPID));
/* Map the PWM region */
map_mmio_regions(d, paddr_to_pfn(EXYNOS5_PA_TIMER),
paddr_to_pfn_aligned(EXYNOS5_PA_TIMER + (PAGE_SIZE * 2)),
map_mmio_regions(d, paddr_to_pfn(EXYNOS5_PA_TIMER), 2,
paddr_to_pfn(EXYNOS5_PA_TIMER));
return 0;
xen/arch/arm/platforms/omap5.c
+4 -8
View File
@@ -102,23 +102,19 @@ static int omap5_init_time(void)
static int omap5_specific_mapping(struct domain *d)
{
/* Map the PRM module */
map_mmio_regions(d, paddr_to_pfn(OMAP5_PRM_BASE),
paddr_to_pfn_aligned(OMAP5_PRM_BASE + (PAGE_SIZE * 2)),
map_mmio_regions(d, paddr_to_pfn(OMAP5_PRM_BASE), 2,
paddr_to_pfn(OMAP5_PRM_BASE));
/* Map the PRM_MPU */
map_mmio_regions(d, paddr_to_pfn(OMAP5_PRCM_MPU_BASE),
paddr_to_pfn_aligned(OMAP5_PRCM_MPU_BASE + PAGE_SIZE),
map_mmio_regions(d, paddr_to_pfn(OMAP5_PRCM_MPU_BASE), 1,
paddr_to_pfn(OMAP5_PRCM_MPU_BASE));
/* Map the Wakeup Gen */
map_mmio_regions(d, paddr_to_pfn(OMAP5_WKUPGEN_BASE),
paddr_to_pfn_aligned(OMAP5_WKUPGEN_BASE + PAGE_SIZE),
map_mmio_regions(d, paddr_to_pfn(OMAP5_WKUPGEN_BASE), 1,
paddr_to_pfn(OMAP5_WKUPGEN_BASE));
/* Map the on-chip SRAM */
map_mmio_regions(d, paddr_to_pfn(OMAP5_SRAM_PA),
paddr_to_pfn_aligned(OMAP5_SRAM_PA + (PAGE_SIZE * 32)),
map_mmio_regions(d, paddr_to_pfn(OMAP5_SRAM_PA), 32,
paddr_to_pfn(OMAP5_SRAM_PA));
return 0;
xen/arch/arm/platforms/xgene-storm.c
+10 -8
View File
@@ -41,15 +41,13 @@ static uint32_t xgene_storm_quirks(void)
}
static int map_one_mmio(struct domain *d, const char *what,
paddr_t start, paddr_t end)
unsigned long start, unsigned long end)
{
int ret;
printk("Additional MMIO %"PRIpaddr"-%"PRIpaddr" (%s)\n",
start, end, what);
ret = map_mmio_regions(d, paddr_to_pfn(start),
paddr_to_pfn_aligned(end),
paddr_to_pfn(start));
ret = map_mmio_regions(d, start, end - start + 1, start);
if ( ret )
printk("Failed to map %s @ %"PRIpaddr" to dom%d\n",
what, start, d->domain_id);
@@ -91,18 +89,22 @@ static int xgene_storm_specific_mapping(struct domain *d)
int ret;
/* Map the PCIe bus resources */
ret = map_one_mmio(d, "PCI MEM REGION", 0xe000000000UL, 0xe010000000UL);
ret = map_one_mmio(d, "PCI MEM REGION", paddr_to_pfn(0xe000000000UL),
paddr_to_pfn(0xe010000000UL));
if ( ret )
goto err;
ret = map_one_mmio(d, "PCI IO REGION", 0xe080000000UL, 0xe080010000UL);
ret = map_one_mmio(d, "PCI IO REGION", paddr_to_pfn(0xe080000000UL),
paddr_to_pfn(0xe080010000UL));
if ( ret )
goto err;
ret = map_one_mmio(d, "PCI CFG REGION", 0xe0d0000000UL, 0xe0d0200000UL);
ret = map_one_mmio(d, "PCI CFG REGION", paddr_to_pfn(0xe0d0000000UL),
paddr_to_pfn(0xe0d0200000UL));
if ( ret )
goto err;
ret = map_one_mmio(d, "PCI MSI REGION", 0xe010000000UL, 0xe010800000UL);
ret = map_one_mmio(d, "PCI MSI REGION", paddr_to_pfn(0xe010000000UL),
paddr_to_pfn(0xe010800000UL));
if ( ret )
goto err;
xen/include/asm-arm/p2m.h
+4 -3
View File
@@ -99,11 +99,12 @@ int p2m_cache_flush(struct domain *d, xen_pfn_t start_mfn, xen_pfn_t end_mfn);
/* Setup p2m RAM mapping for domain d from start-end. */
int p2m_populate_ram(struct domain *d, paddr_t start, paddr_t end);
/* Map MMIO regions in the p2m: start_gfn and end_gfn is the range in the guest
* physical address space to map, starting from the machine frame number mfn. */
/* Map MMIO regions in the p2m: start_gfn and nr_mfns describe the range
* in the guest physical address space to map, starting from the machine
* frame number mfn. */
int map_mmio_regions(struct domain *d,
unsigned long start_gfn,
unsigned long end_gfn,
unsigned long nr_mfns,
unsigned long mfn);
int guest_physmap_add_entry(struct domain *d,
Reference in new issue
xen-project/xen
Block a user
Blocking a user prevents them from interacting with repositories, such as opening or commenting on pull requests or issues. Learn more about blocking a user.

The note is not visible to the blocked user.