From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Fri, 23 Oct 2015 12:23:53 +0200 Subject: [PATCH v2 4/5] drivers: firmware: psci: add extended stateid power_state support In-Reply-To: References: <1436375811-10529-1-git-send-email-lorenzo.pieralisi@arm.com> <1436375811-10529-5-git-send-email-lorenzo.pieralisi@arm.com> Message-ID: <3982126.UybqODJKJo@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thursday 22 October 2015 15:07:06 Kevin Hilman wrote: > Spam Status: Spamassassin CRM114 > On Wed, Jul 8, 2015 at 10:16 AM, Lorenzo Pieralisi > wrote: > > PSCI v1.0 augmented the power_state parameter format specification > > (extended stateid) and introduced a way to probe it through the > > PSCI_FEATURES interface. > > > > This patch implements code that detects the power_state format at > > run-time through the PSCI_FEATURES interface, so that the power_state > > argument can be properly detected and validated in the kernel according > > to the information provided through firmware. > > > > Signed-off-by: Lorenzo Pieralisi > > Cc: Mark Rutland > > kernelci.org started finding a new boot failures in the arm-soc tree > on arm64 qemu[1] and it was bisected down to this patch, which is in > arm-soc in the form of commit a5c00bb28da0 (drivers: firmware: psci: > add extended stateid power_state support) > > The patch doesn't revert cleanly, so I didn't dig much further, but > this suggests that some more testing on qemu is needed (or does qemu > need to be upgraded?) > > Kevin > > [1] http://kernelci.org/boot/all/job/arm-soc/kernel/v4.3-rc5-557-g159ca7e43189/ > Could it be that qemu claims to support psci-1.0 but is actually not compatible? Arnd