From: Jiandi An <anjiandi@codeaurora.org>
To: xen-devel@lists.xen.org
Cc: julien.grall@arm.com, sstabellini@kernel.org,
anjiandi@codeaurora.org, shankerd@codeaurora.org
Subject: [PATCH] arm/domain: allocate pages according to the order of struct domain size
Date: Wed, 8 Jun 2016 01:54:59 -0500 [thread overview]
Message-ID: <1465368899-7127-1-git-send-email-anjiandi@codeaurora.org> (raw)
As the number of CPUs supported on the system grows, number of
GIC redistributors and mmio handlers increase. We need to increase
MAX_RDIST_COUNT and MAX_IO_HANDLER which makes size of struct domain
bigger than one page.
Remove the BUILD_BUG_ON check for if size of struct domain is greater
than PAGE_SIZE. And allocate xenheap pages according to the order of
the size of struct domain.
Signed-off-by: Jiandi An <anjiandi@codeaurora.org>
---
xen/arch/arm/domain.c | 5 +++--
xen/include/asm-arm/gic.h | 2 +-
xen/include/asm-arm/mmio.h | 2 +-
3 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/xen/arch/arm/domain.c b/xen/arch/arm/domain.c
index 1365b4a..7f69236 100644
--- a/xen/arch/arm/domain.c
+++ b/xen/arch/arm/domain.c
@@ -438,8 +438,9 @@ void startup_cpu_idle_loop(void)
struct domain *alloc_domain_struct(void)
{
struct domain *d;
- BUILD_BUG_ON(sizeof(*d) > PAGE_SIZE);
- d = alloc_xenheap_pages(0, 0);
+ unsigned int order = get_order_from_bytes(sizeof(*d));
+
+ d = alloc_xenheap_pages(order, 0);
if ( d == NULL )
return NULL;
diff --git a/xen/include/asm-arm/gic.h b/xen/include/asm-arm/gic.h
index cd97bb2..8165de6 100644
--- a/xen/include/asm-arm/gic.h
+++ b/xen/include/asm-arm/gic.h
@@ -20,7 +20,7 @@
#define NR_GIC_LOCAL_IRQS NR_LOCAL_IRQS
#define NR_GIC_SGI 16
-#define MAX_RDIST_COUNT 4
+#define MAX_RDIST_COUNT 64
#define GICD_CTLR (0x000)
#define GICD_TYPER (0x004)
diff --git a/xen/include/asm-arm/mmio.h b/xen/include/asm-arm/mmio.h
index da1cc2e..798d373 100644
--- a/xen/include/asm-arm/mmio.h
+++ b/xen/include/asm-arm/mmio.h
@@ -23,7 +23,7 @@
#include <asm/processor.h>
#include <asm/regs.h>
-#define MAX_IO_HANDLER 16
+#define MAX_IO_HANDLER 32
typedef struct
{
--
Jiandi An
Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project
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next reply other threads:[~2016-06-08 6:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-08 6:54 Jiandi An [this message]
2016-06-08 9:26 ` [PATCH] arm/domain: allocate pages according to the order of struct domain size Julien Grall
2016-06-09 0:09 ` Jiandi An
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