From: Sergiu Moga <sergiu@unikraft.io>
Date: Thu, 23 Nov 2023 12:55:19 +0000 (+0200)
Subject: plat/common/arm: Init `TPIDR_EL1` in `lcpu_arch_init`
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=1314c17904f736e1430921c6a2626a44d4a043d5;p=unikraft%2Funikraft.git

plat/common/arm: Init `TPIDR_EL1` in `lcpu_arch_init`

Every LCPU shall have their `TPIDR_EL1` system register assigned
the value of the address of their own `struct lcpu` element in the
global `lcpus` array.

Co-authored-by: Michalis Pappas <michalis@unikraft.io>
Signed-off-by: Michalis Pappas <michalis@unikraft.io>
Signed-off-by: Sergiu Moga <sergiu@unikraft.io>
---

diff --git a/plat/common/arm/lcpu.c b/plat/common/arm/lcpu.c
index 2d4021bd1..037b1c1ee 100644
--- a/plat/common/arm/lcpu.c
+++ b/plat/common/arm/lcpu.c
@@ -90,6 +90,8 @@ int lcpu_arch_init(struct lcpu *this_lcpu)
 			return ret;
 	}
 
+	SYSREG_WRITE64(tpidr_el1, (__uptr)this_lcpu);
+
 	return ret;
 }