From: Julien Grall <julien.grall@linaro.org>
To: Ian Campbell <ian.campbell@citrix.com>, xen-devel@lists.xen.org
Cc: tim@xen.org, stefano.stabellini@eu.citrix.com
Subject: Re: [PATCH v5 08/15] xen: arm: drop cache maintenance by set/way trap handling
Date: Mon, 30 Mar 2015 13:28:41 +0100 [thread overview]
Message-ID: <55194179.10206@linaro.org> (raw)
In-Reply-To: <1427713955-15657-8-git-send-email-ian.campbell@citrix.com>
Hi Ian,
On 30/03/15 12:12, Ian Campbell wrote:
> We do not set HCR_EL2.TSW so we will never see these.
>
> This is undoubtedly wrong, but for now remove the dead code.
Would it be better to trap and ignore them?
Even though it wouldn't be entirely correct, it would be better than
letting the guest using it.
Regards,
--
Julien Grall
next prev parent reply other threads:[~2015-03-30 12:28 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-30 11:12 [PATCH v5 0/15] xen: arm: reenable support for 32-bit userspace running in 64-bit guest Ian Campbell
2015-03-30 11:12 ` [PATCH v5 01/15] xen: arm: Correct PMXEV cp register definitions Ian Campbell
2015-03-30 11:12 ` [PATCH v5 02/15] xen: arm: Factor out psr_mode_is_user Ian Campbell
2015-03-30 11:12 ` [PATCH v5 03/15] xen: arm: correctly handle vtimer traps from userspace Ian Campbell
2015-03-30 11:12 ` [PATCH v5 04/15] xen: arm: handle accesses to CNTP_CVAL_EL0 Ian Campbell
2015-03-30 11:12 ` [PATCH v5 05/15] xen: arm: Use ARMv8 names for CNTHCTL_EL2 bits Ian Campbell
2015-03-30 11:12 ` [PATCH v5 06/15] xen: arm: Handle 32-bit EL0 on 64-bit EL1 when advancing PC after trap Ian Campbell
2015-03-30 11:12 ` [PATCH v5 07/15] xen: arm: do not handle traps accessing CLIDR_EL1 or CCSIDR_EL1 Ian Campbell
2015-03-30 11:12 ` [PATCH v5 08/15] xen: arm: drop cache maintenance by set/way trap handling Ian Campbell
2015-03-30 12:28 ` Julien Grall [this message]
2015-03-30 13:15 ` Ian Campbell
2015-03-30 13:59 ` Julien Grall
2015-03-31 9:51 ` Ian Campbell
2015-03-30 11:12 ` [PATCH v5 09/15] xen: arm: Handle CP15 register traps from userspace Ian Campbell
2015-03-30 11:12 ` [PATCH v5 10/15] xen: arm: Handle CP14 32-bit register accesses " Ian Campbell
2015-03-30 11:12 ` [PATCH v5 11/15] xen: arm: correctly handle sysreg " Ian Campbell
2015-03-30 11:12 ` [PATCH v5 12/15] xen: arm: handle remaining traps " Ian Campbell
2015-03-30 11:12 ` [PATCH v5 13/15] xen: arm: Dump guest state when invalid trap state is detected Ian Campbell
2015-03-30 11:12 ` [PATCH v5 14/15] xen: arm: Allow traps from 32 bit userspace on 64 bit hypervisors again Ian Campbell
2015-03-30 11:12 ` [PATCH v5 15/15] xen: arm: always omit guest user stack in vcpu_show_execution_state Ian Campbell
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