| Patrick Williams | 2194f50 | 2022-10-16 14:26:09 -0500 | [diff] [blame^] | 1 | From 2cdf0de8f42c4825f52618b9bbd2ec2084749de0 Mon Sep 17 00:00:00 2001 |
| 2 | From: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com> |
| 3 | Date: Thu, 19 May 2022 16:44:13 +0100 |
| 4 | Subject: [PATCH 40/40] ANDROID: KVM: arm64: disable FFA driver at EL2 |
| 5 | |
| 6 | Do not handle FFA calls |
| 7 | |
| 8 | Signed-off-by: Arunachalam Ganapathy <arunachalam.ganapathy@arm.com> |
| 9 | Upstream-Status: Pending [Not submitted to upstream yet] |
| 10 | Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com |
| 11 | --- |
| 12 | arch/arm64/kvm/hyp/nvhe/hyp-main.c | 3 +++ |
| 13 | arch/arm64/kvm/hyp/nvhe/setup.c | 4 +++- |
| 14 | 2 files changed, 6 insertions(+), 1 deletion(-) |
| 15 | |
| 16 | diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-main.c b/arch/arm64/kvm/hyp/nvhe/hyp-main.c |
| 17 | index 49345929af0d..463cf27712c3 100644 |
| 18 | --- a/arch/arm64/kvm/hyp/nvhe/hyp-main.c |
| 19 | +++ b/arch/arm64/kvm/hyp/nvhe/hyp-main.c |
| 20 | @@ -1134,8 +1134,11 @@ static void handle_host_smc(struct kvm_cpu_context *host_ctxt) |
| 21 | bool handled; |
| 22 | |
| 23 | handled = kvm_host_psci_handler(host_ctxt); |
| 24 | + /* do not handle ffa calls as EL2 FFA driver is not yet complete */ |
| 25 | +#if 0 |
| 26 | if (!handled) |
| 27 | handled = kvm_host_ffa_handler(host_ctxt); |
| 28 | +#endif |
| 29 | if (!handled) |
| 30 | default_host_smc_handler(host_ctxt); |
| 31 | |
| 32 | diff --git a/arch/arm64/kvm/hyp/nvhe/setup.c b/arch/arm64/kvm/hyp/nvhe/setup.c |
| 33 | index 1a6f3eba5035..ce84030426d0 100644 |
| 34 | --- a/arch/arm64/kvm/hyp/nvhe/setup.c |
| 35 | +++ b/arch/arm64/kvm/hyp/nvhe/setup.c |
| 36 | @@ -317,10 +317,12 @@ void __noreturn __pkvm_init_finalise(void) |
| 37 | if (ret) |
| 38 | goto out; |
| 39 | |
| 40 | + /* skip ffa init at EL2, use EL1 driver instead */ |
| 41 | +#if 0 |
| 42 | ret = hyp_ffa_init(ffa_proxy_pages); |
| 43 | if (ret) |
| 44 | goto out; |
| 45 | - |
| 46 | +#endif |
| 47 | hyp_shadow_table_init(shadow_table_base); |
| 48 | out: |
| 49 | /* |
| 50 | -- |
| 51 | 2.34.1 |
| 52 | |