Re: [PATCH v19 1/7] firmware: arm_rmm: Add SMC definitions for calling the RMM
flat view
From: Jonathan Cameron <hidden>
Date: 2026-09-24 16:57:19
Also in:
kvm, kvmarm, linux-coco, lkml
On Thu, 24 Sep 2026 14:51:55 +0100 Suzuki K Poulose [off-list ref] wrote:
From: Steven Price <steven.price@arm.com> The RMM (Realm Management Monitor) provides functionality that can be accessed by SMC calls from the host. The SMC definitions are based on DEN0137[1] version 2.0-bet3 [1] https://developer.arm.com/documentation/den0137/2-0bet3/ Reviewed-by: Gavin Shan <redacted> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Hi Suzuki, One small thing I didn't really care about but where I thought you said you were going to tweak things. Either way Reviewed-by: Jonathan Cameron <redacted>
quoted hunk ↗ jump to hunk
+struct rec_exit { + union { /* 0x000 */ + u8 exit_reason; + u8 padding0[0x100]; + }; + union { /* 0x100 */ + struct { + u64 esr; + u64 far; + u64 hpfar; + u64 rtt_tree; + }; + u8 padding1[0x100]; + }; + union { /* 0x200 */ + u64 gprs[REC_RUN_GPRS]; + u8 padding2[0x100]; + }; + union { /* 0x300 */ + u8 padding3[0x100];
I thought plan was to fold into the padding above? https://lore.kernel.org/all/d7ccaf22-5bde-4344-8bf0-a5a17dcac0f3@arm.com/ (local)
quoted hunk ↗ jump to hunk
+ }; + union { /* 0x400 */ + struct { + u64 cntp_ctl; + u64 cntp_cval; + u64 cntv_ctl; + u64 cntv_cval; + }; + u8 padding4[0x100]; + };