From mboxrd@z Thu Jan 1 00:00:00 1970 From: marc.zyngier@arm.com (Marc Zyngier) Date: Mon, 16 Nov 2015 13:11:55 +0000 Subject: [PATCH 17/21] arm64: KVM: Map the kernel RO section into HYP In-Reply-To: <1447679519-17888-1-git-send-email-marc.zyngier@arm.com> References: <1447679519-17888-1-git-send-email-marc.zyngier@arm.com> Message-ID: <1447679519-17888-18-git-send-email-marc.zyngier@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org In order to run C code in HYP, we must make sure that the kernel's RO section in mapped into HYP (otherwise things break badly). Signed-off-by: Marc Zyngier --- arch/arm/kvm/arm.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c index eab83b2..6c4549a 100644 --- a/arch/arm/kvm/arm.c +++ b/arch/arm/kvm/arm.c @@ -44,6 +44,7 @@ #include #include #include +#include #ifdef REQUIRES_VIRT __asm__(".arch_extension virt"); @@ -1072,6 +1073,12 @@ static int init_hyp_mode(void) goto out_free_mappings; } + err = create_hyp_mappings(__start_rodata, __end_rodata); + if (err) { + kvm_err("Cannot map rodata section\n"); + goto out_free_mappings; + } + /* * Map the Hyp stack pages */ -- 2.1.4