From: marc.zyngier@arm.com (Marc Zyngier)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 4/7] ARM: KVM: enforce maximum size for identity mapped code
Date: Fri, 19 Apr 2013 15:07:40 +0100 [thread overview]
Message-ID: <51714FAC.1010708@arm.com> (raw)
In-Reply-To: <20130419133403.GP14496@n2100.arm.linux.org.uk>
On 19/04/13 14:34, Russell King - ARM Linux wrote:
> On Fri, Apr 12, 2013 at 04:18:49PM +0100, Marc Zyngier wrote:
>> We're about to move to an init procedure where we rely on the
>> fact that the init code fits in a single page. Make sure we
>> align the idmap text on a vector alignment, and that the code is
>> not bigger than a single page.
>>
>> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
>> ---
>> arch/arm/kernel/vmlinux.lds.S | 7 ++++++-
>> 1 file changed, 6 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
>> index b571484..a871b8e 100644
>> --- a/arch/arm/kernel/vmlinux.lds.S
>> +++ b/arch/arm/kernel/vmlinux.lds.S
>> @@ -20,7 +20,7 @@
>> VMLINUX_SYMBOL(__idmap_text_start) = .; \
>> *(.idmap.text) \
>> VMLINUX_SYMBOL(__idmap_text_end) = .; \
>> - ALIGN_FUNCTION(); \
>> + . = ALIGN(32); \
>
> It would be a good idea to document what this 32 is.
Good point. I'll update this.
Thanks,
M.
--
Jazz is not dead. It just smells funny...
next prev parent reply other threads:[~2013-04-19 14:07 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-12 15:18 [PATCH v3 0/7] ARM: KVM: Revamping the HYP init code for fun and profit Marc Zyngier
2013-04-12 15:18 ` [PATCH v3 1/7] ARM: KVM: simplify HYP mapping population Marc Zyngier
2013-04-12 15:18 ` [PATCH v3 2/7] ARM: KVM: fix HYP mapping limitations around zero Marc Zyngier
2013-04-12 15:18 ` [PATCH v3 3/7] ARM: KVM: move to a KVM provided HYP idmap Marc Zyngier
2013-04-12 15:18 ` [PATCH v3 4/7] ARM: KVM: enforce maximum size for identity mapped code Marc Zyngier
2013-04-19 13:34 ` Russell King - ARM Linux
2013-04-19 14:07 ` Marc Zyngier [this message]
2013-04-12 15:18 ` [PATCH v3 5/7] ARM: KVM: rework HYP page table freeing Marc Zyngier
2013-04-15 6:51 ` Christoffer Dall
2013-04-15 8:00 ` Marc Zyngier
[not found] ` <CAEDV+gJtHT7vyNLK1gNbNEzks0=ojZ7RoLGu3vW0CqVZreUnVg@mail.gmail.com>
2013-04-18 7:13 ` Marc Zyngier
2013-04-18 15:37 ` Christoffer Dall
2013-04-12 15:18 ` [PATCH v3 6/7] ARM: KVM: switch to a dual-step HYP init code Marc Zyngier
2013-04-19 13:36 ` Russell King - ARM Linux
2013-04-19 14:07 ` Marc Zyngier
2013-04-19 16:14 ` Christoffer Dall
2013-04-12 15:18 ` [PATCH v3 7/7] ARM: KVM: perform HYP initilization for hotplugged CPUs Marc Zyngier
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